title: Selecting the sample.
authors.affiliation: Yale University School of Nursing, , West Haven, Connecticut, USA.
authors.forename: Allison
authors.initials: A
authors.lastname: Shorten
authors.forename: Calvin
authors.initials: C
authors.lastname: Moorley
mesh_terms: D006801:Humans; D015399:Nursing Research / Q000379:methods / Q000592:standards; D036301:Qualitative Research; D018401:Sample Size; D012494:Sampling Studies