Journal of Pain and Symptom Management · 2002 · 97 citations · 31 references
NursingPain TherapyPain ResearchInterventional Pain MedicineHealth SciencesPain MedicineMedicineCancer PainPreoperative PainPain ManagementOncologyPain Treatment
31
Qualitative evaluation and research methods
Michael Quinn Patton · 1990 · 21.7K citations
The problem of rigor in qualitative research
Margarete Sandelowski · Advances in Nursing Science · 1986 · 2.7K citations
Pain and Its Treatment in Outpatients with Metastatic Cancer
Charles S. Cleeland, René Gonin, Alan K. Hatfield et al. · New England Journal of Medicine · 1994 · 2K citations