title: Judgmental sampling.
authors.forename: John J
authors.initials: JJ
authors.lastname: Curtis
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D016208:Databases, Factual; D003920:Diabetes Mellitus / Q000628:therapy; D006801:Humans; D016377:Organ Transplantation / Q000379:methods*; D018579:Patient Selection; D011336:Probability; D012107:Research Design; D018401:Sample Size