| Literature DB >> 5544575 |
J A Zipper, H J Tatum, M Medel, L Pastene, M Rivera.
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Year: 1971 PMID: 5544575 DOI: 10.1016/0002-9378(71)90763-0
Source DB: PubMed Journal: Am J Obstet Gynecol ISSN: 0002-9378 Impact factor: 8.661