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34. First-trimester ultrasound determination of chorionicity in twin pregnancy. Dias T; Arcangeli T; Bhide A; Napolitano R; Mahsud-Dornan S; Thilaganathan B Ultrasound Obstet Gynecol; 2011 Nov; 38(5):530-2. PubMed ID: 21308842 [TBL] [Abstract][Full Text] [Related]
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