D D Federman. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » Ambulatory CareEducation, Medical/economicsUnited States
Year: 1989 PMID: 2725588 DOI: 10.1056/NEJM198906083202312
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245