| Literature DB >> 13622921 |
Abstract
Entities:
Keywords: RESPIRATORY TRACT/infections; SMOKING/injurious effects
Mesh:
Year: 1958 PMID: 13622921 DOI: 10.1056/NEJM195812252592602
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245