Dr Ruth Lewis

Senior Lecturer in Health Sciences Research

  1. 2024
  2. Cyhoeddwyd

    Methodological approaches to measuring mental health in a cost-of-living crisis: A rapid review

    England, C., Jarrom, D., Washington, J., Hasler, E., Batten, L., Edwards, A. & Lewis, R., Meh 2024, Yn: Health Policy. 144, 105062.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. Wedi ei Dderbyn / Yn y wasg

    Tensions in primary care cancer detection: An embedded qualitative intervention development study

    Hiscock, J., Law, R-J., Brain, K., Smits, S., Nafees, S., Williams, N., Rose, J., Lewis, R., Roberts, J., Hendry, A., Neal, R. & Wilkinson, C., 13 Mai 2024, (Wedi ei Dderbyn / Yn y wasg) Yn: BJGP open.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  4. E-gyhoeddi cyn argraffu

    ‘ThinkCancer!’ – Randomised feasibility trial of a novel practice-based early cancer diagnosis intervention

    Disbeschl, S., Hendry, A., Surgey, A., Walker, D., Goulden, N., Anthony, B., Neal, R., Williams, N., Hoare, Z., Hiscock, J., Edwards, R. T., Lewis, R. & Wilkinson, C., 3 Mai 2024, (E-gyhoeddi cyn argraffu) Yn: BJGP open.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. Wedi ei Dderbyn / Yn y wasg

    Informing evidence-based policy during the COVID-19 pandemic and recovery period: learning from a national evidence centre

    Cooper, A., Lewis, R., Gal, M., Joseph-Williams, N., Greenwell, J., Watkins, A., Strong, A., Williams, D., Doe, E., Law, R-J. & Edwards, A., 8 Ebr 2024, (Wedi ei Dderbyn / Yn y wasg) Yn: Global Health Research and Policy.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  6. E-gyhoeddi cyn argraffu

    Mitigating COVID-19 Burden in People Experiencing Incarceration: A Systematic Review

    Spinks, B., Williams, DB., Williams, D., Lewis, R., Bull, F., Ogbonna, O. & Edwards, A., 5 Ebr 2024, (E-gyhoeddi cyn argraffu) Yn: Journal of Correctional Health Care.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  7. Cyhoeddwyd

    The Effects of the COVID-19 Pandemic on People Experiencing Incarceration: a Systematic Review

    Williams, D. B., Spinks, B., Williams, D., Lewis, R., Bull, F. & Edwards, A., 5 Ebr 2024, Yn: BMJ Open. 14, 17 t., e076451.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. Cyhoeddwyd

    The costs and cost-effectiveness of different service models of palliatice care, focusing on end of life care: A rapid review

    Spencer, L., Anthony, B., Davies, J., Pisavadia, K., Gillen, E., Noyes, J., Fitzsimmons, D., Lewis, R., Cooper, A., Hughes, D., Edwards, R. T. & Edwards, A., 7 Maw 2024, MedRxiv, 118 t.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  9. Cyhoeddwyd

    Potential types of bias when estimating causal effects in environmental research and how to interpret them

    Konno, K., Gibbons, J., Lewis, R. & Pullin, A., 7 Chwef 2024, Yn: Environmental Evidence. 13, 1, 1.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    A bespoke rapid evidence review process engaging stakeholders for supporting evolving and time-sensitive policy and clinical decision-making: reflection and lessons learned from the Wales Covid-19 Evidence Centre 2021-23

    Lewis, R., Cooper, A., Jarrom, D., Mann, M., Law, R-J., Edwards, D., Carrier, J., Shaw, H., Winfield, T., Spencer, L., Noyes, J., Morgan, H., Washington, J., Hasler, E., Gal, M., Doe, E., Joseph-Williams, N. & Edwards, A., 23 Ion 2024, Research Square.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  11. Cyhoeddwyd

    The Effectiveness and Cost-Effectiveness of Community Diagnostic Centres: A Rapid Review

    Wale, A., Okolie, C., Everitt, J., Hookway, A., Shaw, H., Little, K., Lewis, R., Cooper, A. & Edwards, A., 23 Ion 2024, Yn: International Journal of Public Health . 69, 1606243.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl adolyguadolygiad gan gymheiriaid

  12. Cyhoeddwyd

    Prognostic factors for a change in eye health or vision: A rapid review

    Hammond, G., Needham-Taylor, A., Bromham, N., Gillen, E., Searchfield, L., Lewis, R., Cooper, A., Edwards, A., Edwards, R. T. & Davies, J., 18 Ion 2024, MedRxiv.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  13. Cyhoeddwyd

    Wellness in work - supporting people in work and assisting people to return to the workforce: An economic evidence review.

    Edwards, R. T., Spencer, L., Anthony, B., Davies, J., Pisavadia, K., Makanjuola, A., Lloyd-Williams, H., Fitzsimmons, D., Collins, B., Charles, J., Lewis, R., Cooper, A., Barutcu, S. & McKibben, M-A., 17 Ion 2024, MedRxiv.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  14. 2023
  15. Cyhoeddwyd

    A rapid review exploring the effectiveness of artificial intelligence for cancer diagnosis

    Wale, A., Shaw, H., Ayres, T., Okolie, C., Edwards, R. T., Davies, J., Lewis, R., Cooper, A. & Edwards, A., 9 Tach 2023, MedRxiv.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  16. Cyhoeddwyd

    What are the most effective interventions to support children and young people bereaved by suicide in the family: a rapid review

    Mann, M., Kisleva, M., Searchfield, L., Mazzaschi, F., Jones, R., Lifford, K., Weightman, A., John, A., Lewis, R., Edwards, R. T., Davies, J., Cooper, A. & Edwards, A., 25 Medi 2023, MedRxiv.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  17. Cyhoeddwyd

    The impact of being homeless on the clinical outcomes of COVID-19, and the impact of the pandemic on health inequalities in this population: systematic review

    Ogbonna, O., Bull, F., Spinks, B., Williams, D., Lewis, R. & Edwards, A., 15 Medi 2023, Yn: Journal of Public Health. 68, 1605893.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    Measuring Mental Health in a Cost-of-Living Crisis: a rapid review

    England, C., Jarrom, D., Washington, J., Hasler, E., Batten, L., Lewis, R., Edwards, R. T., Davies, J., Collins, B., Cooper, A. & Edwards, A., 24 Gorff 2023, MedRxiv.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  19. Cyhoeddwyd

    What is the forecasted prevalence and incidence of long-term conditions in Wales: a rapid evidence map

    Edwards, D., Csontos, J., Gillen, E., Hutchinson, G., Sha'aban, A., Carrier, J., Lewis, R., Edwards, R. T., Davies, J., Collins, B., Cooper, A. & Edwards, A., 25 Meh 2023, MedRxiv.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  20. Cyhoeddwyd
  21. Cyhoeddwyd

    Impact of COVID-19 pandemic on incidence of long-term conditions in Wales: a population data linkage study using primary and secondary care health records

    Qi, C., Osborne, T., Bailey, R., Cooper, A., Hollinghurst, J., Akbari, A., Crowder, R., Peters, H., Law, R-J., Lewis, R., Smith, D., Walker, M., Edwards, A. & Lyons, R., Mai 2023, Yn: British Journal of General Practice. 73, 730, t. e332-e339

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  22. Cyhoeddwyd
  23. Cyhoeddwyd

    Interventions to mitigate the risks of COVID-19 for people experiencing homelessness and their effectiveness: a systematic review

    Ogbonna, O., Bull, F., Spinks, B., Williams, D., Lewis, R. & Edwards, A., 2023, Yn: Frontiers in Public Health. 11, 1286730.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  24. 2022
  25. Cyhoeddwyd

    Effect of the COVID-19 pandemic on incidence of long-term conditions in Welsh residents: a population linkage study

    Qi, C., Osborne, T., Bailey, R., Hollinghurst, J., Akbari, A., Cooper, A., Law, R-J., Lewis, R., Edwards, A. & Lyons, R., Tach 2022, Yn: The Lancet. 400, t. S69

    Allbwn ymchwil: Cyfraniad at gyfnodolynCrynodeb Cyfarfodadolygiad gan gymheiriaid

  26. Cyhoeddwyd

    What is the long-term impact of COVID-19 on the Health-Related Quality of Life of individuals with mild symptoms (or non-hospitalised): A rapid review

    Spencer, L., Hendry, A., Makanjuola, A., Davies, J., Pisavadia, K., Hughes, D., Fitzsimmons, D., Wilkinson, C., Edwards, R. T., Lewis, R., Cooper, A. & Edwards, A., 9 Medi 2022, Health and Care Research Wales, 47 t.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  27. Cyhoeddwyd

    A rapid review of innovations for attraction, recruitment and retention of social care workers, and exploration of factors influencing turnover within the UK context

    Edwards, D., Trigg, L., Carrier, J., Cooper, A., Csontos, J., Day, J., Gillen, E., Lewis, R. & Edwards, A., 1 Medi 2022, Yn: Journal of Long-Term Care. 2022, t. 205–221

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  28. 2021
  29. Cyhoeddwyd

    Quantitative evidence synthesis methods for the assessment of the effectiveness of treatment sequences for clinical and economic decision-making: a review and taxonomy of simplifying assumptions

    Lewis, R., Hughes, D., Sutton, AJ. & Wilkinson, C., Ion 2021, Yn: PharmacoEconomics. 39, 1, t. 25-61 37 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    Protocol for a feasibility study incorporating a randomised pilot trial with an embedded process evaluation and feasibility economic analysis of ThinkCancer!: a primary care intervention to expedite cancer diagnosis in Wales

    Disbeschl, S., Surgey, A., Roberts, J. L., Hendry, A., Lewis, R., Goulden, N., Hoare, Z., Williams, N., Anthony, B. F., Edwards, R. T., Law, R-J., Hiscock, J., Carson-Stevens, A., Neal, R. D. & Wilkinson, C., 2021, Yn: Pilot and Feasibility Studies. 7, 1, 100.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. 2020
  32. Cyhoeddwyd

    Development, validation and effectiveness of diagnostic prediction tools for colorectal cancer in primary care: a systematic review

    Grigore, B., Lewis, R., Peters, J., Robinson, S. & Hyde, C. J., 10 Tach 2020, Yn: BMC Cancer. 20, 1, 1084.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    Cancer diagnostic tools to aid decision-making in primary care: mixed-methods systematic reviews and cost-effectiveness analysis

    Medina-Lara, A., Grigore, B., Lewis, R., Peters, J., Price, S., Londa, P., Robinson, S., Neal, R., Hamilton, W. & Spencer, A., Tach 2020, Yn: Health Technology Assessment. 24, 66, t. 1-332 332 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  34. Cyhoeddwyd

    Protocol for a definitive randomised controlled trial and economic evaluation of a community-based rehabilitation programme following hip fracture: fracture in the elderly multidisciplinary rehabilitation-phase III (FEMuR III)

    Williams, N., Dodd, S., Hardwick, B., Clayton, D., Edwards, R. T., Charles, J. M., Logan, P., Busse, M., Lewis, R., Smith, T. O., Sackley, C., Morrison, V., Lemmey, A., Masterson-Algar, P., Howard, L., Hennessy, S., Soady, C., Ralph, P., Dobson, S. & Dorkenoo, S., 16 Hyd 2020, Yn: BMJ Open. 10, 10, t. e039791

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  35. 2019
  36. Cyhoeddwyd

    Pragmatic methods for reviewing exceptionally large bodies of evidence: systematic mapping review and overview of systematic reviews using lung cancer survival as an exemplar

    Lewis, R., Hendry, M., Din, N., Stanciu, M. A., Nafees, S., Hendry, A., Teoh, Z. H., Lloyd, T., Parsonage, R., Neal, R. D., Collier, G. & Huws, D. W., 16 Gorff 2019, Yn: Systematic Reviews. 8, 1, 171.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  37. 2018
  38. Cyhoeddwyd

    Development of an intervention to expedite cancer diagnosis through primary care: a protocol

    Stanciu, M. A., Law, R-J., Nafees, S., Hendry, M., Yeo, S. T., Hiscock, J., Lewis, R., Edwards, R., Williams, N., Brain, K., Brocklehurst, P., Carson-Stevens, A., Dolwani, S., Emery, J., Hamilton, W., Hoare, Z., Lyratzopoulos, G., Rubin, G., Smits, S., Vedsted, P., Walter, F., Wilkinson, C. & Neal, R., Hyd 2018, Yn: British Journal of General Practice. 2, 3, bjgpopen18X101595.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. 2017
  40. Cyhoeddwyd

    Factors associated with lung cancer survival – systematic mapping review and overview of systematic reviews

    Lewis, R., Hendry, M., Din, N., Nafees, S., Hendry, A., Neal, R. & Parsonage, R., Rhag 2017, 100 t.

    Allbwn ymchwil: Llyfr/AdroddiadAdoddiad Aralladolygiad gan gymheiriaid

  41. Cyhoeddwyd

    Decision analytic modelling methods for the assessing the effectiveness of treatment sequences for clinical and economic decision making: a methodological review

    Lewis, R., Hughes, D. & Wilkinson, C., 30 Tach 2017, Yn: Value in Health. 20, 9, t. A748 1 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  42. 2015
  43. Cyhoeddwyd

    Comparative clinical effectiveness of management strategies for sciatica: Systematic review and network meta-analyses

    Lewis, R. A., Williams, N. H., Sutton, A. J., Burton, K., Din, N. U., Matar, H. E., Hendry, M., Phillips, C. J., Nafees, S., Fitzsimmons, D., Rickard, I. & Wilkinson, C., 1 Meh 2015, Yn: Spine Journal. 15, 6, t. 1461-77 17 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  44. Cyhoeddwyd

    Is increased time to diagnosis and treatment in symptomatic cancer associated with poorer outcomes? Systematic review

    Neal, R. D., Tharmanathan, P., France, B., Din, N. U., Cotton, S., Fallon-Ferguson, J., Hamilton, W., Hendry, A., Hendry, M., Lewis, R., Macleod, U., Mitchell, E. D., Pickett, M., Rai, T., Shaw, K., Stuart, N., Tørring, M. L., Wilkinson, C., Williams, B., Williams, N. & Emery, J., 31 Maw 2015, Yn: British Journal of Cancer. 112 , Suppl 1, t. S92-107

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. 2014
  46. Cyhoeddwyd

    Cost-effectiveness of different strategies to manage patients with sciatica

    Fitzimmons, D., Phillips, C. J., Bennett, H., Jones, M., Williams, N. H., Lewis, R., Sutton, A., Matar, H. E., Din, N. U., Burton, K., Nafees, S., Hendry, M., Rickard, I. & Wilkinson, C. E., Gorff 2014, Yn: Pain. 155, 7, t. 1318-1327 10 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  47. Cyhoeddwyd

    Cordotomy in mesothelioma-related pain: a systematic review

    France, B. D., Lewis, R. A., Sharma, M. L. & Poolman, M., 1 Maw 2014, Yn: BMJ Supportive and Palliative Care. 4, 1, t. 19-29

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  48. 2013
  49. Cyhoeddwyd

    “HPV? Never heard of it!”: A systematic review of girls’ and parents’ information needs, views and preferences about human papillomavirus vaccination

    Wilkinson, C. E., Lewis, R. A., Hendry, M., Clements, A. & Damery, S., 9 Medi 2013, Yn: Vaccine. 31, 45, t. 5152-5167

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  50. Cyhoeddwyd

    A systematic review and meta-analysis of biological treatments targeting tumour necrosis factor α for sciatica

    Williams, N. H., Lewis, R., Din, N. U., Matar, H. E., Fitzsimmons, D., Phillips, C. J., Sutton, A., Burton, K., Hendry, M., Nafees, S. & Wilkinson, C., Medi 2013, Yn: European Spine Journal. 22, 9, t. 1921-35 15 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  51. Cyhoeddwyd

    Why do we want the right to die? A systematic review of the international literature on the views of patients, carers and the public on assisted dying

    Hendry, M., Pasterfield, D., Lewis, R., Carter, B., Hodgson, D. & Wilkinson, C. E., 1 Ion 2013, Yn: Palliative Medicine. 27, 1, t. 13-26

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  52. 2012
  53. Cyhoeddwyd

    Are women ready for the new cervical screening protocol in England? A systematic review and qualitative synthesis of views about human papillomavirus testing

    Hendry, M., Pasterfield, D., Lewis, R., Clements, A., Damery, S., Neal, R. D., Adke, R., Weller, D., Campbell, C., Patnick, J., Sasieni, P., Hurt, C., Wilson, S. & Wilkinson, C. E., 14 Gorff 2012, Yn: British Journal of Cancer. 107, t. 243-254

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  54. Cyhoeddwyd

    Measuring illness and exercise beliefs in osteoarthritis of the hip or knee: psychometric properties of the ‘Hip and Knee Beliefs Questionnaire’ and the ‘Exercise Attitude Questionnaire’

    Williams, N. H., Amoakwa, E., Belcher, J., Burton, K., Hendry, M., Lewis, R., Hood, K., Bennett, P., Neal, R. D. & Wilkinson, C. E., 1 Ebr 2012, Yn: International Musculoskeletal Medicine. 34, 1, t. 13-20

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  55. 2011
  56. Cyhoeddwyd

    The clinical effectiveness and cost-effectiveness of management strategies for sciatica: systematic review and economic model

    Lewis, R., Williams, N. H., Williams, N., Din, N., Fitzsimmons, D., Phillips, C., Jones, M., Sutton, A., Burton, K., Nafees, S., Hendry, M., Rickard, I., Chakraverty, R. & Wilkinson, C. E., Tach 2011, Yn: Health Technology Assessment. 15, 39, t. 1-578 578 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  57. Cyhoeddwyd

    Activity Increase Despite Arthritis (AÏDA): phase II randomised controlled trial of an active management booklet for hip and knee osteoarthritis in primary care

    Williams, N. H., Amoakwa, E., Belcher, J., Edwards, R. T., Hassani, H., Hendry, M., Burton, K., Lewis, R., Hood, K., Jones, J., Bennett, P., Linck, P. G., Neal, R. D. & Wilkinson, C. E., 1 Awst 2011, Yn: British Journal of General Practice. 61, 589, t. e452-e458

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  58. Oral or topical nasal steroids for hearing loss associated with otitis media with effusion in children

    Simpson, S. A., Lewis, R., van der Voort, J. & Butler, C. C., 11 Mai 2011, Yn: Cochrane Database of Systematic Reviews. 2011, 5, t. Art. No.: CD001935

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  59. 2010
  60. Cyhoeddwyd

    The Hip and Knee Book: developing an active management booklet for hip and knee osteoarthritis

    Williams, N. H., Amoakwa, E., Burton, K., Hendry, M., Lewis, R., Jones, J., Bennett, P., Neal, R. D., Andrew, G. & Wilkinson, C. E., 1 Chwef 2010, Yn: British Journal of General Practice. 60, 571, t. e64-e82

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  61. 2009
  62. Cyhoeddwyd

    A review comparing the effectiveness of nurse led follow-up for cancer with conventional care

    Lewis, R. & Hendry, M., 17 Medi 2009, Yn: Nursing Times. 105, 37, t. 25-27 3 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

  63. Cyhoeddwyd

    Activity Increase Despite Arthritis (AÏDA): design of a Phase II randomised controlled trial evaluating an active management booklet for hip and knee osteoarthritis [ISRCTN24554946]

    Williams, N., Amoakwa, E., Burton, K., Hendry, M., Belcher, J., Lewis, R., Hood, K., Jones, J. G., Bennett, P., Edwards, R. T., Neal, R., Andrew, G. & Wilkinson, C., 4 Medi 2009, Yn: BMC Family Practice. 10, 62, t. 1-9 62.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  64. Cyhoeddwyd

    Follow-up of cancer in primary care versus secondary care: systematic review

    Lewis, R. A., Neal, R. D., Williams, N. H., France, B., Hendry, M., Russell, D., Hughes, D. A., Russell, I., Stuart, N. S. A., Weller, D. & Wilkinson, C., 1 Gorff 2009, Yn: British Journal of General Practice. 59, 564, t. e234-e247

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  65. Cyhoeddwyd

    Patients' and healthcare professionals' views of cancer follow-up: systematic review

    Lewis, R., Neal, R. D., Hendry, M., France, B., Williams, N. H., Russell, D., Hughes, D. A., Russell, I., Stuart, N. S. A., Weller, D. & Wilkinson, C., Gorff 2009, Yn: British Journal of General Practice. 59, 564, t. e248-e259

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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