P Ryan, D Winand, H L Bleich, W V Slack, D Porter. Show Affiliations »
Abstract
Mesh: See more » MEDLARS/economicsSoftware/economicsUnited States
Year: 1987 PMID: 3538967 DOI: 10.7326/0003-4819-106-1-168_2
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391