Sterilization law in the United States

睪丸摘除術。此方式為不可逆手術，一旦進行了便不可能再次回復懷孕的可能性。因此除非是腫瘤等問題，一般人類不太會選擇此方式進行絕育手術。通常是動物進行較多，較常見的為犬、貓等伴侶動物。 《美國絕育法（英语：Sterilization law in the United States）》 《巴克訴貝爾案》

（英语）.  Bowsher, David K. Cracking the Code of United States v. Virginia. Duke Law Journal (Duke University School of Law). November 1998, 48 (2): 305–339

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Orientation and Gender Identity in the EU Member States Part II: The Social Situation (PDF). fra.europa.eu.  Petit Press a.s. Law change criminalises homophobia

[2022-03-31], （原始内容存档于2016-01-06）  Reuters. Surgery and Sterilization Scrapped in Malta's Benchmark LGBTI Law. The New York Times. 2015-04-01 [2021-03-26]. （原始内容存档于2015-04-04）