| Literature DB >> 4687991 |
H C Frick, E W Munnell, R M Richart, A P Berger, M F Lawry.
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Year: 1973 PMID: 4687991 DOI: 10.1016/0002-9378(73)90615-7
Source DB: PubMed Journal: Am J Obstet Gynecol ISSN: 0002-9378 Impact factor: 8.661