{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,4]],"date-time":"2025-09-04T13:22:16Z","timestamp":1756992136430},"reference-count":17,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2011,1,12]],"date-time":"2011-01-12T00:00:00Z","timestamp":1294790400000},"content-version":"vor","delay-in-days":12064,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[1978,1]]},"abstract":"<jats:p><jats:bold>Abstract. <\/jats:bold> Endoscopic ovarian biopsies were performed on 78 amenorrheic patients in an attempt to determine the etiology of their amenorrhea and predict its prognosis, correlating the histologic examination with physical findings, endocrine patterns and cytogenetic studies. Ovarian follicles were present while gonadotropins were high in 14 cases (6 primary, 8 secondary) and there were no follicles in 4 cases (3 primary, 1 secondary) whose gonadotropins were low. Secondary sex characteristics were well developed without prior estrogen stimulation in 5 cases of primary amenorrhea who had no follicles and whose gonadotropins were either low, 3, or high, 2. The mere presence of ovarian follicles was not enough to make them responsive to gonadotropin stimulation whether endogenous or exogenous; a phenomenon that had to do with the quality and quantity of germinal follicles available. The histologic examination of ovarian tissue for the evaluation of amenorrhea has been made feasible and relatively safe through recent advances in endoscopic techniques<\/jats:p>","DOI":"10.3109\/00016347809154022","type":"journal-article","created":{"date-parts":[[2009,12,8]],"date-time":"2009-12-08T18:05:02Z","timestamp":1260295502000},"page":"301-311","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Ovarian biopsy in the evaluation of amenorrhea"],"prefix":"10.1111","volume":"57","author":[{"given":"Karam","family":"Karam","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adnan","family":"Mroueh","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,1,12]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1677\/joe.0.0130059"},{"key":"e_1_2_1_3_1","first-page":"840","article-title":"Operative culdoscopy","volume":"32","author":"Clyman M. 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