COLBY, F H Azoospermia. [electronic resource] - The New England journal of medicine Aug 1949 - 213-5 p. digital Publication Type: Journal Article ISSN: 0028-4793 Standard No.: 10.1056/NEJM194908042410506 doi Subjects--Topical Terms: AzoospermiaBody FluidsHumansInfertility, MaleMaleSemen