| Literature DB >> 4126557 |
J K Baum, J J Bookstein, F Holtz, E W Klein.
Abstract
Entities:
Keywords: Biology; Contraception; Contraceptive Methods; Diseases; Family Planning; Histology; Liver Neoplasms; Neoplasms; Oral Contraceptives; Oral Contraceptives, Combined; Oral Contraceptives, Phasic; Research Methodology; Retrospective Studies; Studies
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Year: 1973 PMID: 4126557 DOI: 10.1016/s0140-6736(73)92594-4
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321