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Citation |
Williams AF, Wechsler H. Health Serv. Rep. (HSMHA) 1972; 87(10): 969-976. |
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Copyright |
(Copyright © 1972, U.S. Public Health Service) |
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DOI |
unavailable |
PMID |
4650413 |
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PMCID |
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Abstract |
[Abstract unavailable] Language: en |