| Literature DB >> 4317667 |
B P Teehan, J F Maher, J J Carey, P D Flynn, G E Schreiner.
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Year: 1970 PMID: 4317667 DOI: 10.7326/0003-4819-72-6-875
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391