| Literature DB >> 6946891 |
H Hausen, O P Heinonen, I Paunio.
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Year: 1981 PMID: 6946891 DOI: 10.1111/j.1600-0528.1981.tb01038.x
Source DB: PubMed Journal: Community Dent Oral Epidemiol ISSN: 0301-5661 Impact factor: 3.383