Jobbins J, Bagg J, Finlay IG, Addy M, Newcombe RG. Oral and dental disease in terminally ill cancer patients. BMJ1992; 304: 1612–1612.
2.
Sweeney MP, Bagg J, Baxter WP, Aitchison TC. Clinical trial of a mucin-containing spray for the treatment of xerostomia in hospice patients. Palliat Med1997; 11: 225–232.
3.
Eilers J, Berger AM, Petersen MC. Development, testing and application of the oral assessment guide. Oncol Nurs Forum1988; 15: 325–330.
4.
Holmes S, Mountain E. Assessment of the oral status: evaluation of three oral assessment guides. J Clin Nurs1993; 2: 35–40.
5.
Beaver K, Luker K, Woods S. Conducting research with the terminally ill: challenges and considerations. Int J Palliat Nurs1999; 5: 13–17.
6.
Jordhøy MS, Kaasa S, Fayers P, Øvreness T, Underland G, Ahlner-Elmqvist M. Challenges in palliative care research; recruitment, attrition and compliance: experience from a randomised controlled trial. Palliat Med1999; 13: 299–310.
7.
Grande GE, Todd CJ. Why are trials in palliative care so difficult?Palliat Med2000; 14: 69–74.
8.
McWhinney IR, Bass MJ, Donner A. Evaluation of a palliative care service: problems and pitfalls. BMJ1994; 309: 1340–1342.
9.
Clark D, Ingleton C, Seymour J. Support and supervision in palliative care research. Palliat Med2000; 14: 441–446.