1. Evaluating qualitative research.;Boulton;Evidence-Based Health Policy and Management,1997
2. Qualitative research in health care. II: A structured review and evaluation of studies.;Boulton;Journal of Evaluation in Clinical Practice,1996
3. Qualitative research methods in general practice and primary care.;Britten;Family Practice,1995
4. Qualitative research in health care: the scope and validity of methods.;Fitzpatrick;Journal of Evaluation in Clinical Practice,1996
5. Rigour and qualitative research.;Mays;British Medical Journal,1995