Browning, A J Maternal plasma concentrations of beta-lipotrophin, beta-endorphin and gamma-lipotrophin throughout pregnancy. [electronic resource] - British journal of obstetrics and gynaecology Dec 1983 - 1147-51 p. digital Publication Type: Journal Article ISSN: 0306-5456 Standard No.: 10.1111/j.1471-0528.1983.tb06462.x doi Subjects--Topical Terms: AdolescentAdultEndorphins--bloodFemaleHumansMenstruationPregnancyRadioimmunoassayTime Factorsbeta-Endorphinbeta-Lipotropin--blood