L B Callan, N Parlette, A R Leonard. Show Affiliations »
Abstract
Mesh: See more » CurriculumEducation, ContinuingHealth Occupations/educationPublic Health/educationSampling StudiesSurveys and QuestionnairesTime FactorsUnited States
Year: 1969 PMID: 4979017 PMCID: PMC2031554
Source DB: PubMed Journal: Public Health Rep ISSN: 0094-6214 Impact factor: 2.792