| Literature DB >> 3113600 |
J Bonal, A Caralps, R Lauzurica, A Serra, R Romero, L Inaraja.
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Year: 1987 PMID: 3113600 PMCID: PMC1246902 DOI: 10.1136/bmj.295.6589.25
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623