H. Single

Focus groups.

R. Powell, H. Single, 1996, International journal for quality in health care : journal of the International Society for Quality in Health Care.

Focus Groups in Mental Health Research: Enhancing the Validity of User and Provider Questionnaires

R. Powell, H. Single, K. Lloyd, 1996, The International journal of social psychiatry.

Methodology Matters--V

R. Powell, H. Single, 1996 .