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The value of, and indications for, measurements of serum gonadotrophin concentrations are discussed: it appears that FSH measurements allow better discrimination than LH measurements in diagnosing patients with primary ovarian failure. The results of stimulation tests with the synthetic form of gonadotrophin-releasing hormone are described and the relationship of tests with exogenous progestogens and clomiphene is discussed.<\/jats:p>","DOI":"10.1136\/pgmj.51.594.209","type":"journal-article","created":{"date-parts":[[2008,12,29]],"date-time":"2008-12-29T20:31:39Z","timestamp":1230582699000},"page":"209-214","source":"Crossref","is-referenced-by-count":3,"title":["Endocrine aspects of anovulation"],"prefix":"10.1093","volume":"51","author":[{"given":"H S","family":"Jacobs","sequence":"first","affiliation":[{"name":"The Middlesex Hospital , London W.1"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[1975,4,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"193","DOI":"10.1016\/0002-9378(73)90284-6","article-title":"Withdrawal bleeding and luteinizing hormone secretion following progesterone in women with amenorrhoea","volume":"115","author":"GOLDENBERG, E.L.; GRODIN, J.M.; VAITUKAITIS, J.L.; Ross, G.T.","year":"1973","unstructured":"GOLDENBERG, E.L., GRODIN, J.M., VAITUKAITIS, J.L. & Ross, G.T. 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In: Gonadal Steroid Secretion","volume":"6","author":"ODELL, W.D.; SWERDLOFF, R.S.; ABRAHAM, G.E.; JACOBS, H.S.; WALSH, P.C.","year":"1971","unstructured":"ODELL, W.D., SWERDLOFF, R.S., ABRAHAM, G.E., JACOBS, H.S. & WALSH, P.C. (1971) Pituitary-gonadal relationships. In: Gonadal Steroid Secretion. Pfizer Medical Monographs, No. 6 (Ed. by J. A. Strong and D. Baird), p. 32. Edinburgh University Press.","journal-title":"Pfizer Medical Monographs"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1847","DOI":"10.1172\/JCI106402","article-title":"Correlation of serum follicle stimulating hormone (FSH) and luteinizing hormone (LH) in disorders of sexual development","volume":"49","author":"PENNY, R.; GUYDA, H.J.; BAGDASSARIAN, A.; JOHANSON, A.J.; BLIZZARD, R.M.","year":"1970","unstructured":"PENNY, R., GUYDA, H.J., BAGDASSARIAN, A., JOHANSON, A.J. & BLIZZARD, R.M. 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