CrossRef Thirty-four. Mays In, Pope D: Qualitative research inside health care: Evaluating top quality in qualitative investigation. Uk Healthcare Record The year 2000, 330:50�C52.PubMedCrossRef Thirty-five. Denzin NK: Secrets to A number of Triangulation. In The Investigation Act A Theoretical Introduction to Sociological Techniques. Modified simply by: Denzin NK. New Jersey: Prentice Hall; 1989.