WHARTON, L R NORMAL PREGNANCY WITH LIVING CHILDREN IN WOMEN PAST THE AGE OF FIFTY. [electronic resource] - American journal of obstetrics and gynecology Nov 1964 - 672-81 p. digital Publication Type: Journal Article ISSN: 0002-9378 Standard No.: 10.1016/s0002-9378(16)34991-2 doi Subjects--Topical Terms: AgingFemaleHumansPregnancyVital Statistics