1. Erthygl › Ymchwil › Adolygwyd gan gymheiriaid
2. Cyhoeddwyd

   Supporting People With Type 2 Diabetes in the Effective Use of Their Medicine Through Mobile Health Technology Integrated With Clinical Care to Reduce Cardiovascular Risk: Protocol for an Effectiveness and Cost-effectiveness Randomized Controlled Trial

   Farmer, A. J., Jones, L., Newhouse, N., Kenning, C., Williams, N., Chi, Y., Bartlett, K., Plumpton, C., McSharry, J., Cholerton, R., Holmes, E., Robinson, S., Allen, J., Gudgin, B., Velardo, C., Rutter, H., Horne, R., Tarassenko, L., Williams, V., Locock, L., Rea, R., Yu, L-M., Hughes, D., Bower, P. & French, D. P., 21 Chwef 2022, Yn: JMIR Research Protocols. 11, 2, e32918.

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

3. Cyhoeddwyd

   Supporting people with type 2 diabetes in effective use of their medicine through mobile health technology integrated with clinical care (SuMMiT-D Feasibility): a randomised feasibility trial protocol

   Farmer, A. J., Allen, J., Bartlett, K., Bower, P., Chi, Y., French, D. P., Gudgin, B., Holmes, E., Horne, R., Hughes, D., Kenning, C., Locock, L., McSharry, J., Miles, L., Newhouse, N., Rea, R., Riga, J., Tarassenko, L., Velardo, C., Williams, N., Williams, V. & Yu, L-M., 29 Rhag 2019, Yn: BMJ Open. 9, 12, e033504.

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

4. Cyhoeddwyd

   Surgical microdiscectomy versus transforaminal epidural steroid injection in patients with sciatica secondary to herniated lumbar disc (NERVES): a phase 3, multicentre, open-label, randomised controlled trial and economic evaluation

   Wilby, M. J., Best, A., Wood, E., Burnside, G., Bedson, E., Short, H., Wheatley, D., Hill-McManus, D., Sharma, M., Clark, S., Baranidharan, G., Price, C., Mannion, R., Hutchinson, P. J., Hughes, D., Marson, A. G. & Williamson, P., 1 Mai 2021, Yn: The Lancet Rheumatology. 3, 5, t. e347-e356

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

5. Cyhoeddwyd

   Systematic Review: Outcomes and adverse events from randomised trials in Crohn's disease

   Catt, H., Hughes, D., Kirkham, J. K. & Bodger, K., Ebr 2019, Yn: Alimentary Pharmacology and Therapeutics. 49, 8, t. 978-996 19 t.

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

6. Cyhoeddwyd

   TEOS: A framework for constructing operational definitions of medication adherence based on Timelines – Events – Objectives – Sources

   Dima, A. L., Allemann, S. S., Dunbar-Jacobs, J., Hughes, D., Vrijens, B. & Wilson, I., Meh 2021, Yn: British Journal of Clinical Pharmacology. 87, 6, t. 2521-2533

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

7. Cyhoeddwyd

   The British antibiotic and silver-impregnated catheters for ventriculoperitoneal shunts multi-centre randomised controlled trial (the BASICS trial): study protocol

   Hughes, D., Jenkinson, M. D., Gamble, C., Hartley, J. C., Hickey, H., Hughes, D. A., Blundell, M., Griffiths, M. J., Solomon, T. & Malluci, C. L., 3 Ion 2014, Yn: Trials. 15, 14

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

8. Cyhoeddwyd

   The Development of a Consistent Europe-Wide Approach to Investigating the Economic Impact of Myalgic Encephalomyelitis (ME/CFS): A Report from the European Network on ME/CFS (EUROMENE)

   Pheby, D. F. H., Araja, D., Berkis, U., Brenna, E., Cullinan, J., de Korwin, J-D., Gitto, L., Hughes, D., Hunter, R. M., Trépel, D. & Wang-Steverding, X., 7 Ebr 2020, Yn: Healthcare. 8, 2, 88.

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

9. Cyhoeddwyd

   The Population Pharmacokinetics of R and S-Warfarin: Effect of Genetic and Clinical Factors

   Hughes, D., Lane, S., Al-Zubiedi, S., Hatch, E., Matthews, I., Jorgensen, A. L., Deloukas, P., Daly, A. K., Aarons, L., Ogungbenro, K., Kamali, F., Hughes, D. A. & Pirmohamed, M., 1 Ion 2012, Yn: British Journal of Clinical Pharmacology. 73, 1, t. 66-76

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

10. Cyhoeddwyd

    The ROAM/EORTC-1308 trial: Radiation versus Observation following surgical resection of Atypical Meningioma: study protocol for a randomised controlled trial

    Jenkinson, M. D., Javadpour, M., Haylock, B. J., Young, B., Gillard, H., Vinten, J., Bulbeck, H., Das, K., Farrell, M., Looby, S., Hickey, H., Preusser, M., Mallucci, C. L., Hughes, D., Gamble, C. & Weber, D. C., 14 Tach 2015, Yn: Trials. 16

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

11. Cyhoeddwyd

    The SANAD II study of the effectiveness and cost-effectiveness of levetiracetam, zonisamide or lamotrigine for newly diagnosed focal epilepsy: an open-label, non-inferiority, multicentre, phase 4, randomised controlled trial

    Marson, A., Burnside, G., Appleton, R., Smith, D., Leach, J. P., Sills, G., Tudor-Smith, C., Plumpton, C., Hughes, D., Williamson, P., Baker, G. A., Balabanova, S., Taylor, C., Brown, R., Hindley, D., Howell, S., Maguire, M., Mohanraj, R. & Smith, P. E., 10 Ebr 2021, Yn: The Lancet. 397, 10282, t. 1363-1374

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

12. Cyhoeddwyd

    The SANAD II study of the effectiveness and cost-effectiveness of valproate versus levetiracetam for newly diagnosed generalised and unclassifiable epilepsy: an open-label, non-inferiority, multicentre, phase 4, randomised controlled trial

    Marson, A., Burnside, G., Appleton, R., Leach, J. P., Sills, G., Tudor-Smith, C., Plumpton, C., Hughes, D., Williamson, P., Baker, G. A., Balabanova, S., Taylor, C., Brown, R., Hindley, D., Howell, S., Maguire, M., Mohanraj, R. & Smith, P. E., 10 Ebr 2021, Yn: The Lancet. 397, 10282, t. 1375-1386

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

13. Cyhoeddwyd

    The development of a QALY measure for epilepsy: NEWQOL-6D

    Hughes, D., Mulhern, B., Rowen, D., Jacoby, A., Marson, T., Snape, D., Hughes, D. A., Latimer, N., Baker, G. A. & Brazier, J. E., 1 Mai 2012, Yn: Epilepsy and Behavior. 24, 1, t. 36-43

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

14. Cyhoeddwyd

    The difference between effectiveness and efficacy of antimalarial drugs in Kenya.

    Hughes, D., Amin, A. A., Hughes, D. A., Marsh, V., Abuya, T. O., Kokwaro, G. O., Winstanley, P. A., Ochala, S. A. & Snow, R. W., 1 Medi 2004, Yn: Tropical Medicine and International Health. 9, 9, t. 967-974

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

15. Cyhoeddwyd

    The impact of non-compliance on the cost-effectiveness of pharmaceuticals: A review of the literature.

    Hughes, D., Hughes, D. A., Bagust, A., Haycox, A. & Walley, T., 1 Hyd 2001, Yn: Health Economics. 10, 7, t. 601-615

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

16. Cyhoeddwyd

    The impact of parent treatment preference and other factors on recruitment: lessons learned from a paediatric epilepsy randomised controlled trial

    Carter, B., Bray, L., Al-Najjar, N., Tort Piella, A., Smith, C. T., Spowart, C., Collingwood, A., Crudgington, H., Currier, J., Hughes, D., Wood, E., Martin, R., Morris, C., Roberts, D., Rouncefield-Swales, A., Sutherland, H., Watson, V., Cook, G., Wiggs, L., Gringas, P. & Pal, D., 6 Chwef 2023, Yn: Trials. 24, 1, 83.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

17. Cyhoeddwyd

    The influence of non-compliance on the effectiveness and cost-effectiveness of drug therapies

    Hughes, D., Hughes, D. A., Bagust, A., Haycox, A. & Walley, T., 1 Ion 2000, Yn: Value in Health. 3, 5, t. 373

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

18. Cyhoeddwyd

    The new and non-transparent Cancer Drugs Fund

    Wood, E. & Hughes, D., Ion 2020, Yn: PharmacoEconomics. 38, 1, t. 1-4

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

19. Cyhoeddwyd

    The problem of orphan drugs

    Hughes, D., Ferner, R. E. & Hughes, D. A., 16 Tach 2010, Yn: British Medical Journal. 341, t. 335-341

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

20. Cyhoeddwyd

    The role of prevention in reducing the economic impact of ME/CFS in Europe: A report from the socioeconomics working group of the European Network on ME/CFS (EUROMENE).

    Pheby, D. F. H., Araja, D., Berkis, U., Brenna, E., Cullinan, J., de Korwin, J-D., Gitto, L., Hughes, D., Hunter, R. M., Trépel, D. & Wang-Steverding, X., 16 Ebr 2021, Yn: Medicina. 57, 4, 388.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

21. Cyhoeddwyd

    Trends and influences on use of antidiabetic drugs in England, 1992-2003.

    Walley, T., Hughes, D. & Kendall, H., 1 Tach 2005, Yn: Pharmacoepidemiology and Drug Safety. 14, 11, t. 769-773

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

22. Cyhoeddwyd

    Understanding medication compliance and persistence from an economics perspective

    Hughes, D., Elliot, R. A., Shinogle, J. A., Peele, P., Bhosle, M. & Hughes, D. A., 1 Ion 2008, Yn: Value in Health. 11, 4, t. 600-610

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

23. Cyhoeddwyd

    Use Of The Ims Core Diabetes Model (CDM) In A Long-Term Projected Health Economic Comparison Of CSII And MDI Treatments Of Type 1 Diabetes (T1D) In A Newly-Diagnosed Population Of Paediatric Patients

    Ridyard, C., Blair, J. & Hughes, D., 20 Hyd 2017, Yn: Value in Health. 20, 9, t. A580

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

24. Cyhoeddwyd

    Using Routinely Recorded Data in a UK RCT: A Comparison to Standard Prospective Data Collection Methods

    Powell, G., Bonnett, L., Tudor-Smith, C., Hughes, D., Williamson, P. R. & Marson, A. G., 5 Gorff 2021, Yn: Trials. 22, 1, 429.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

25. Cyhoeddwyd

    Using Routinely Recorded Data in the UK to Assess Outcomes in a Randomised Controlled Trial: The Trials of Access

    Powell, G., Bonnett, L., Smith, C. T., Hughes, D., Williamson, P. & Marson, A., 23 Awst 2017, Yn: Trials. 18, 11 t., 389.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

26. Cyhoeddwyd

    Utilising Benefit-Risk Assessments within Clinical Trials – A Protocol for the BRAINS project

    Totton, N., Julious, S., Hughes, D., Cook, J., Biggs, K., Coates, L., Cook, A., Hewitt, C. & Day, S., 19 Ion 2021, Yn: Trials. 22, 68.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

27. Cyhoeddwyd

    Valuations of epilepsy-specific health states: a comparison of patients with epilepsy and the general population

    Hughes, D., Mulhern, B., Rowen, D., Snape, D., Jacoby, A., Marson, T., Hughes, D. A., Baker, G. & Brazier, J., 1 Gorff 2014, Yn: Epilepsy and Behavior. 36, t. 12-17

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

28. Cyhoeddwyd

    Value assessment and quantitative benefit-risk modelling of biosimilar infliximab for Crohn’s disease

    Catt, H., Bodger, K., Hughes, D. & Kirkham, J. J., Rhag 2019, Yn: PharmacoEconomics. 37, 12, t. 1509-1523 15 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

29. Cyhoeddwyd

    Value of improving patient safety: Health-economic considerations for Rapid Response Systems – a Rapid Review of the Literature and Expert Round Table

    Subbe, C., Hughes, D., Lewis, S., Holmes, E., Kalkman, C. J., So, R. K., Tranka, S. & Welch, J., 17 Ebr 2023, Yn: BMJ Open. 13, 4, e065819.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

30. Cyhoeddwyd

    Value-Based Pricing: Incentive for Innovation or Zero Net Benefit?

    Hughes, D. & Hughes, D. A., 1 Medi 2011, Yn: Pharmacoeconomics. 29, 9, t. 731-735

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

31. Cyhoeddwyd

    Warfarin pharmacogenetics: Economic considerations.

    Hughes, D., Hughes, D. A. & Pirmohamed, M., 1 Ion 2007, Yn: Pharmacoeconomics. 25, 11, t. 899-902

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

32. E-gyhoeddi cyn argraffu

    We need to talk about values: a proposed framework for the articulation of normative reasoning in health technology assessment

    Hughes, D., 27 Medi 2023, (E-gyhoeddi cyn argraffu) Yn: Health Economics, Policy and Law.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

33. Cyhoeddwyd

    What influences persistence with medicines? A multinational discrete choice experiment of 2549 patients

    Holmes, E. A., Morrison, V. L. & Hughes, D., Awst 2016, Yn: British Journal of Clinical Pharmacology. 82, 2, t. 522-531

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

34. Cyhoeddwyd

    What really matters? A mixed methods study of treatment preferences and priorities among people with epilepsy in the UK

    Ring, A., Jacoby, A., Baker, G., Holmes, E., Hughes, D., Kierans, C. & Marson, A., Meh 2019, Yn: Epilepsy and Behavior. 95, t. 181-191

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

35. Cyhoeddwyd

    What should patients do if they miss a dose? A systematic review of patient information leaflets and summaries of product characteristics

    Albassam, A. & Hughes, D., Chwef 2021, Yn: European Journal of Clinical Pharmacology. 77, 2, t. 251-260 10 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

36. Cyhoeddwyd

    When drugs don't work - Economic assessment of enhancing compliance with interventions supported by electronic monitoring devices.

    Hughes, D. & Hughes, D. A., 1 Ion 2007, Yn: Pharmacoeconomics. 25, 8, t. 621-635

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

37. Cyhoeddwyd

    ‘Seizure First Aid Training’ for people with epilepsy who attend emergency departments, and their family and friends: study protocol for intervention development and a pilot randomised controlled trial

    Noble, A. J., Marson, A. G., Tudur-Smith, C., Morgan, M., Hughes, D., Goodacre, S. & Ridsdale, L., 24 Gorff 2015, Yn: BMJ Open. 5, 7

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

38. Llythyr › Ymchwil › Adolygwyd gan gymheiriaid
39. Cyhoeddwyd

    2016 Prof. John Urquhart Obituary

    Breckenridge, A. & Hughes, D., Awst 2016, Yn: British Journal of Clinical Pharmacology. 82, 2, t. 573

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

40. Cyhoeddwyd

    Cost-effectiveness analysis of adalimumab for the treatment of uveitis associated with Juvenile Idiopathic Arthritis: Authors’ reply.

    Hughes, D., Culeddu, G., Plumpton, C., Wood, E., Dick, A. D., Beresford, M. W. & Ramanan, A. V., Maw 2019, Yn: Ophthalmology. 126, 3, t. e24-e25

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

41. Cyhoeddwyd

    Do guidelines for treating chest disease in children use Cochrane reviews effectively? A systematic review

    Prayle, A., Cox, T., Smith, S. J., Rycroft-Malone, J., Thomas, K. S., Hughes, D. & Smyth, A. R., Gorff 2018, Yn: Thorax. 73, 7, t. 670-673

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

42. Cyhoeddwyd

    Involving colleagues can be challenging

    Fargher, E. & Hughes, D., 2 Ebr 2011, Yn: Pharmaceutical Journal. 286, t. 404

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

43. Cyhoeddwyd

    Letter to the Editor. Phase III randomized controlled trials are essential to properly evaluate the role of radiotherapy in WHO grade II meningioma

    Jenkinson, M., Weber, D., Haylock, B., Sherratt, F., Young, B., Weller, M., Bulbeck, H., Culeddu, G., Hughes, D., Brain, A., Das, K., Preusser, M., Francis, P. & Gamble, C., 17 Awst 2018, Yn: Journal of Neurology, Neurosurgery and Psychiatry.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

44. Cyhoeddwyd

    Management of Patients Symptomatically Unresponsive to Levothyroxine: Natural Desiccated Thyroid Extract or the Combination of Levothyroxine and Liothyronine? A Research Priority

    Hughes, D., Livingston, M. & Heald, A., Medi 2020, Yn: Experimental and Clinical Endocrinology & Diabetes . 128, 9, t. 596-598

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

45. Cyhoeddwyd

    Medicines Shortages in the United Kingdom

    Hughes, D., Hyd 2019, Yn: Clinical Pharmacology and Therapeutics. 106, 4, t. 712

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

46. Cyhoeddwyd

    Taxonomy for methods of resource use measurement

    DIRUM Team, 23 Ion 2015, Yn: Health Economics. 24, 3, t. 372-378

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

47. Sylw/Dadl › Ymchwil › Heb ei adolygu gan gymheiriaid
48. Cyhoeddwyd

    Cost-effectiveness of HLA-B*15:02 screening in Malaysia

    Plumpton, C. & Hughes, D., Hyd 2017, Yn: British Journal of Dermatology. 177, 4, t. 904-905

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Sylw/Dadl

49. Sylw/Dadl › Ymchwil › Adolygwyd gan gymheiriaid
50. Cyhoeddwyd

    Challenges for economic evaluation of strategies to contain antimicrobial resistance

    Holmes, E. & Hughes, D., 27 Medi 2019, Yn: Antibiotics. 8, 4, 8 t., 166.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Sylw/Dadl › adolygiad gan gymheiriaid

51. Cyhoeddwyd

    Pharmacogenomics spotlight commentary: From the United Kingdom to global populations

    Magavern, E. F., Daly, A. K., Gilchrist, A. & Hughes, D., Rhag 2021, Yn: British Journal of Clinical Pharmacology. 87, 12, t. 4546-4548 3 t., 14917.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Sylw/Dadl › adolygiad gan gymheiriaid

52. Golygyddiad › Ymchwil › Adolygwyd gan gymheiriaid
53. Cyhoeddwyd

    Improving Medication Adherence Research Reporting: European Society for Patient Adherence, Compliance and Persistence Medication Adherence Reporting Guideline

    de Geest, S., Zullig, L., Dunbar-Jacobs, J., Hughes, D., Wilson, I. & Vrijens, B., Meh 2019, Yn: Journal of Cardiovascular Nursing. 34, 3, t. 199-200

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Golygyddiad › adolygiad gan gymheiriaid

54. Cyhoeddwyd

    Improving medication adherence research reporting: ESPACOMP Medication Adherence Reporting Guideline (EMERGE)

    de Geest, S., Zullig, L. L., Dunbar-Jacob, J., Hughes, D., Wilson, I. & Vrijens, B., 1 Ebr 2019, Yn: European Journal of Cardiovascular Nursing. 18, 4, t. 258-259 2 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Golygyddiad › adolygiad gan gymheiriaid

55. Cyhoeddwyd

    Medication adherence research comes of age

    Wright, D. F. B., Sinnappah, K. A. & Hughes, D., Gorff 2023, Yn: British Journal of Clinical Pharmacology. 89, 7, t. 1914-1917

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Golygyddiad › adolygiad gan gymheiriaid