Related Experiment Video
Updated: Jul 30, 2026

12:17
The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo
Published on: August 2, 2017
Abstract:
A survey of 3,000 unwanted pregnancies disclosed two main populations differing in age, marital status, and contraceptive practice. Failure to use contraception accounted for two-thirds of the pregnancies. More than half of the patients were married women or single women in stable relationships, but many single women faced their predicament alone, without help from partner or parent.Some evidence is given of valid needs which could not be met by existing N.H.S. facilities.

