| Literature DB >> 4812568 |
H Fries, S J Nillius, F Pettersson.
Abstract
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Keywords: Amenorrhea--etiology; Biology; Body Weight; Comparative Studies; Diseases; Epidemiologic Methods; Marital Status; Menstruation; Menstruation Disorders; Nuptiality; Oral Contraceptives; Physiology; Psychological Factors; Research Methodology; Retrospective Studies; Studies
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Year: 1974 PMID: 4812568 DOI: 10.1016/s0002-9378(16)33686-9
Source DB: PubMed Journal: Am J Obstet Gynecol ISSN: 0002-9378 Impact factor: 8.661