| Literature DB >> 9314684 |
D E Nelson1, B Thompson, S M Smith, J R Harris, J Madans, E L Hunter.
Abstract
Mesh:
Year: 1997 PMID: 9314684 DOI: 10.1377/hlthaff.16.5.134
Source DB: PubMed Journal: Health Aff (Millwood) ISSN: 0278-2715 Impact factor: 6.301