| Literature DB >> 4296195 |
J K Nelson, D W Neill, D A Montgomery, J S MacKay, B Sheridan, J A Weaver.
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Year: 1968 PMID: 4296195 PMCID: PMC1985229 DOI: 10.1136/bmj.1.5591.557
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447