| Literature DB >> 6974499 |
E J Quilligan, F Clewlow, B M Johnston, D W Walker.
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Year: 1981 PMID: 6974499 DOI: 10.1016/s0002-9378(16)32632-1
Source DB: PubMed Journal: Am J Obstet Gynecol ISSN: 0002-9378 Impact factor: 8.661