| Literature DB >> 922221 |
Abstract
Entities:
Keywords: Asia; China; Contraception; Developing Countries; Eastern Asia; Family Planning; Taiwan
Mesh:
Year: 1977 PMID: 922221 DOI: 10.1007/bf02461778
Source DB: PubMed Journal: Bull Math Biol ISSN: 0092-8240 Impact factor: 1.758