| Literature DB >> 4146722 |
H J Keene, J R Melberg, C R Nicholson.
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Year: 1973 PMID: 4146722 DOI: 10.1111/j.1752-7325.1973.tb00654.x
Source DB: PubMed Journal: J Public Health Dent ISSN: 0022-4006 Impact factor: 1.821