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Focus-group research for family planning: lessons learned in sub-Saharan Africa |
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| Authors: | Lettenmaier C Langlois P Kumah O M Kiragu K Jato M Zacharias J Kols A Piotrow P T |
| Affiliation: | Population Communication Services, Center for Communication Programs, The Johns Hopkins University, Baltimore, MD 21202. |
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| 本文献已被 PubMed 等数据库收录！ | |