| Literature DB >> 1978135 |
A Vaqlia, R Nicolin, V Puro, G Ippolito, C Bettini, F de Lalla.
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Year: 1990 PMID: 1978135 DOI: 10.1016/0140-6736(90)92997-v
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321