| Literature DB >> 18139467 |
N SILVERTHORNE, M P ARMSTRONG.
Abstract
Entities:
Keywords: POLIOMYELITIS/epidemiology and statistics
Mesh:
Year: 1949 PMID: 18139467 PMCID: PMC1591617
Source DB: PubMed Journal: Can Med Assoc J ISSN: 0008-4409 Impact factor: 8.262