O. M. da C. Vargens, J. M. Progianti, and A. C. F. da Silveira, “The meaning of unmedicalization of childbirth attendance in hospitals: an analysis of the obstetric nurses’ conception”, Rev. Esc. Enferm. USP, vol. 42, no. 2, pp. 339–346, Jun. 2008, doi: 10.1590/S0080-62342008000200018.