| Literature DB >> 6905897 |
N Freudenberg, C H Feldman, N M Clark, E J Millman, I Valle, Y Wasilewski.
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Year: 1980 PMID: 6905897 DOI: 10.1111/j.1746-1561.1980.tb02079.x
Source DB: PubMed Journal: J Sch Health ISSN: 0022-4391 Impact factor: 2.118