Experiences with the Friedman Test
Experiences with the Friedman Test. FOR several years it has been known that the amount of female sex hormone, estrin, as well as the amount of gonad stimulating hormone from the anterior pituitary, prolan, were increased in the blood during pregnancy. Mazers theory as given by Bland, First and Roeder is 1 that the luteal hormone which is stimulated by prolan prepares the endometrium to take care of the pregnancy and is therefore found early in the blood while estrin governs growth and vasculation of the uterus and is not needed early- in fact, will in large quantities produce abortion.