| Literature DB >> 4100402 |
J D Ward, C G Barnes, D J Fisher, J D Jessop, R W Baker.
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Year: 1971 PMID: 4100402 DOI: 10.1016/s0140-6736(71)92415-9
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321