| Literature DB >> 1970397 |
K J Gaskin, D L Waters, M de Silva, H Martin, R Howman-Giles, S Dorney.
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Year: 1990 PMID: 1970397 DOI: 10.1016/0140-6736(90)92672-5
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321