| Literature DB >> 5775028 |
G Schimert, H L Falsetti, I L Bunnell, D C Dean, A A Gage, C Grant, D G Greene.
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Year: 1969 PMID: 5775028 DOI: 10.7326/0003-4819-70-3-437
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391