{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T20:54:31Z","timestamp":1760043271036},"reference-count":12,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2008,5,8]],"date-time":"2008-05-08T00:00:00Z","timestamp":1210204800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[2009,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Spontaneous dizygotic unilateral twin tubal pregnancy is an extremely rare occurrence with a high risk for pregnancy\u2010related mortality, and a diagnostic challenge for obstetricians. We present a case of a 27\u2010year\u2010old woman with spontaneous twin tubal pregnancy. Transvaginal color Doppler sonography revealed 2 separate gestational sacs within the right adnexa, each containing an embryo. Cytogenetic examination of the trophoblastic tissues confirmed the diagnosis of dizygotic twin ectopic pregnancy. Clinical signs and symptoms together with imaging studies help in the diagnosis of this rare variant of ectopic pregnancies. \u00a9 2008 Wiley Periodicals, Inc. J Clin Ultrasound, 2009<\/jats:p>","DOI":"10.1002\/jcu.20495","type":"journal-article","created":{"date-parts":[[2008,5,8]],"date-time":"2008-05-08T22:16:57Z","timestamp":1210285017000},"page":"104-106","source":"Crossref","is-referenced-by-count":9,"title":["Spontaneous unilateral dizygotic twin tubal pregnancy"],"prefix":"10.1002","volume":"37","author":[{"given":"Teresa","family":"Tam","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ali","family":"Khazaei","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2008,5,8]]},"reference":[{"key":"e_1_2_1_2_2","first-page":"304","article-title":"A case of unilateral tubal twin gestation","volume":"36","author":"DeOtt D","year":"1891","journal-title":"Ann Gynecol Obstet"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1440-1673.1999.00596.x"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000196503.78126.62"},{"key":"e_1_2_1_5_2","first-page":"6(S)","article-title":"Centers for Disease Control and Prevention\/National Center for Health Statistics. 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