| Literature DB >> 7246643 |
Abstract
Keywords: Americas; Developed Countries; Double-blind Studies; Menstrual Cycle; Menstruation; New York; North America; Northern America; Ovulation; Prospective Studies; Reproduction; Research Methodology; Studies; United States
Mesh:
Year: 1981 PMID: 7246643 DOI: 10.1016/0002-9378(81)90294-5
Source DB: PubMed Journal: Am J Obstet Gynecol ISSN: 0002-9378 Impact factor: 8.661