| Literature DB >> 4528785 |
J M Birkeland, L Jorkjend, F R von der Fehr.
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Year: 1973 PMID: 4528785 DOI: 10.1111/j.1600-0528.1973.tb01057.x
Source DB: PubMed Journal: Community Dent Oral Epidemiol ISSN: 0301-5661 Impact factor: 3.383