Alberts, M E Obstetrics, past to present. [electronic resource] - Iowa medicine : journal of the Iowa Medical Society Mar 1990 - 133-4 p. digital Publication Type: Historical Article; Journal Article ISSN: 0746-8709 Subjects--Topical Terms: FemaleHistory, 17th CenturyHistory, 18th CenturyHistory, 19th CenturyHistory, AncientHistory, MedievalHumansMidwifery--historyObstetrics--historyPregnancyPuerperal Infection--history