Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSERUM PROGESTERONE AND OESTRADIOL CONCENTRATIONS IN WOMEN WITH UNEXPLAINED INFERTILITY.AuthorsDriessen, F.; Kremer, J.; Alsbach, G. P. J.; Kroon, R. A.PublicationBJOG: An International Journal of Obstetrics & Gynaecology, 1980, Vol 87, Issue 7, p619ISSN1470-0328Publication typeArticleDOI10.1111/j.1471-0528.1980.tb05016.x