J D Knoke, R J Sokol. Show Affiliations »
Abstract
Mesh: See more » FemaleGestational AgeHumansMenstruationPregnancyStatistics as Topic
Year: 1989 PMID: 2704086 DOI: 10.1001/jama.261.16.2329
Source DB: PubMed Journal: JAMA ISSN: 0098-7484 Impact factor: 56.272