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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Late termination of pregnancy ： ウィキペディア英語版 Late termination of pregnancy Late termination of pregnancy (TOP), also known as postviability abortion, late-term abortion, later-term abortion, partial-birth abortion, ITOP, or simply abortion〔''Roe v. Wade'', (410 U.S. 113 ) (1972). Findlaw.com. Retrieved 2011-04-14.〕 are terminations of pregnancy which are performed during a later stage of pregnancy. Late termination of pregnancy are more controversial than abortion in general because they result in the demise of a fetus that is more developed and sometimes able to survive independently. Given the complex, gradual nature of human fetal development, the definition of "late" in this context is not precise, and different medical publications have discussed the varying gestational age points that can be involved. ==Definition== A late termination of pregnancy often refers to an induced ending of pregnancy after the 20th week of gestation. The exact point when a pregnancy becomes late-term, however, is not clearly defined. Some sources define an abortion after 16 weeks as "late".〔Torres, Aida and Forrest, Jacqueline Darroch. (1988). (Why Do Women Have Abortions ). ''Family Planning Perspectives, 20 (4)'', 169-176. Retrieved April 19, 2007.〕〔Weihe, Pál, Steuerwald, Ulrike, Taheri, Sepideh, Færø, Odmar, Veyhe, Anna Sofía, & Nicolajsen, Did. (2003). (The Human Health Programme in the Faroe Islands 1985-2001 ). In ''AMAP Greenland and the Faroe Islands 1997-2001''. Danish Ministry of Environment. Retrieved April 19, 2007.〕 Three articles published in 1998 in the same issue of the ''Journal of the American Medical Association'' could not agree on the definition. Two of the ''JAMA'' articles chose the 20th week of gestation to be the point where an abortion procedure would be considered late-term.〔Sprang, M.L, and Neerhof, M.G. (1998). (Rationale for banning abortions late in pregnancy ). ''Journal of the American Medical Association, 280 (8),'' 744-747. Grimes, D.A. (1998). (The continuing need for late abortions ). ''Journal of the American Medical Association, 280 (8)'', 747-750.〕 The third ''JAMA'' article chose the third trimester, or 27th week of gestation.〔Gans Epner, J.E., Jonas, H.S., Seckinger, D.L. (1998). (Late-term abortion ). ''Journal of the American Medical Association, 280 (8)'', 724-729.〕 The point at which an abortion becomes late-term is often related to the "viability" (ability to survive outside the uterus) of the fetus. Sometimes late-term abortions are referred to as post-viability abortions. However, viability varies greatly among pregnancies. Many pregnancies are viable after the 27th week, and no pregnancies are viable before the 21st week. Everything in between is a "grey area".〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Late termination of pregnancy」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.