A Jongsma. Show Affiliations »
Abstract
Mesh: See more » Developing CountriesPeriodicals as Topic/supply & distribution
Year: 1993 PMID: 8094145 DOI: 10.1016/0140-6736(93)90182-g
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321