| Literature DB >> 2638909 |
S Chaturvedi, S B Gupta, B C Srivastava, S Nirupam, A K Rastogi.
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Year: 1989 PMID： 2638909 DOI： 10.1177/101053958900300408
Source DB: PubMed Journal: Asia Pac J Public Health ISSN： 1010-5395 Impact factor: 1.399