Low use of contraception among poor women in Africa: an equity issue
CREANGA, Andreea A ; GILLESPIE, Duff ; KARKLINSA, Sabrina ; TSUI, Amy O
Bulletin of the World Health Organization, 2011-04, Vol.89 (4), p.258-266 [Periódico revisado por pares]Genève: Organisation mondiale de la santé
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