| Literature DB >> 1148677 |
S M Crispin, S W Douglas, L W Hall, J F Hird, R B Lavelle, M C Littlewort, E T Evans, R G Walker.
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Year: 1975 PMID： 1148677 PMCID： PMC1673395 DOI： 10.1136/bmj.2.5969.500-b
Source DB: PubMed Journal: Br Med J ISSN： 0007-1447