N M Kaplan. Show Affiliations »
Abstract
Mesh: See more » AdvertisingDrug IndustryEducation, Medical, ContinuingFees and ChargesTraining SupportUnited States
Year: 1979 PMID: 759847 DOI: 10.1056/NEJM197901253000411
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245