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2. The american midwife controversy: a crisis of professionalization;Kobrin FE;Bull Hist Med,1966
3. The passing of the Midwives'Act, 1902: Part I;Ward AR;Midwives Chron,1981
4. The midwifery throughout history;Litoff JB;J Nurse Midwifery,1982
5. Breve história das disputas de comadres, parteiras e médicos;Marques MB;Saúde em Debate,1982