体外排精
参考资料

↑  . 中華百科全書. 1983  [2015-10-21]. （原始内容存档于2019-03-12）.
↑  Rogow D, Horowitz S. . Studies in family planning. 1995, 26 (3): 140–53  [2010-07-15]. PMID 7570764. doi:10.2307/2137833. （原始内容存档于2016-03-06）. , which cites:
Population Action International (1991). "A Guide to Methods of Birth Control." Briefing Paper No. 25, Washington, D. C.
↑  Creatsas G. . Curr Opin Obstet Gynecol. 1993, 5 (6): 774–83. PMID 8286689.
↑  Adams, Cecil. . The Straight Dope. Creative Loafing Media, Inc. 2002-01-07  [2010-08-04]. （原始内容存档于2009-03-02）.
↑  《創世記》第38章第6节至第10节参
1 2  Collier, Aine. . Amherst, NY: Prometheus Books. 2007. ISBN 978-1-59102-556-6.
1 2  Bullough, Vern L. . Santa Barbara, Calif: ABC-CLIO. 2001: 74–75  [2009-07-24]. ISBN 1-57607-181-2.
↑   (PDF). Population Reference Bureau. 2002  [2006-09-14]. （原始内容存档 (PDF)于2006-09-26）.
↑  Chandra, A; Martinez, GM; Mosher, WD; Abma, JC; Jones, J.  (PDF). Vital Health Stat (National Center for Health Statistics). 2005, 23 (25)  [2007-05-20]. （原始内容存档 (PDF)于2016-08-23）.  See Tables 53 and 56.
↑  Ortayli, N; Bulut, A; Ozugurlu, M; Cokar, M. . Reproductive Health Matters. 2005, 25 (13): 164–73. PMID 16035610. doi:10.1016/S0968-8080(05)25175-3.
↑  . 上海市人民政府.   [2014-08-22]. （原始内容存档于2014-08-26）.
1 2  John Kippley  &  Sheila Kippley.  第4版. 辛辛那提, 俄亥俄州: en|The Couple to Couple League. 1996: 146. ISBN 0-926412-13-2 （英语）. , which cites:

Guttmacher Institute. . The Medical Letter on Drugs and Therapeutics. 1992, 34 (885): 111–114. PMID 1448019. 
 Hatcher, RA; Trussel J, Stewart F, et al.  Sixteenth Revised. New York: Irvington Publishers. 1994. ISBN 0-8290-3171-5.  引文使用过时参数coauthors (帮助)
↑  Audet MC, Moreau M, Koltun WD, Waldbaum AS, Shangold G, Fisher AC, Creasy GW.  (Slides of comparative efficacy]). JAMA. 2001, 285 (18): 2347–54  [2015-10-21]. PMID 11343482. doi:10.1001/jama.285.18.2347. （原始内容存档于2016-03-04）. 
Guttmacher Institute. . Facts in Brief. Guttmacher Institute.   [2005-05-10]. （原始内容存档于2005-05-25）.  - see table First-Year Contraceptive Failure Rates
1 2 3  Hatcher, RA; Trussel J, Stewart F, et al.  18th. New York: Ardent Media. 2000  [2010-07-15]. ISBN 0-9664902-6-6. （原始内容存档于2008-05-31）.  引文使用过时参数coauthors (帮助)
↑  Jones RK, Fennell J, Higgins JA, Blanchard K.  (PDF). Contraception. 2009年6月, 79 (6): 407–10  [2009-07-23]. PMID 19442773. doi:10.1016/j.contraception.2008.12.008. （原始内容存档 (PDF)于2009-06-11）.
↑  James Trusell; Leveque, JA; Koenig, JD; London, R; Borden, S; Henneberry, J; Laguardia, KD; Stewart, F; Wilson, TG.  (PDF). American Journal of Public Health. April 1995, 85 (4): 494–503  [2010-07-15]. PMID 7702112. doi:10.2105/AJPH.85.4.494. （原始内容存档 (PDF)于2008-12-21）.
↑  Zukerman, Z.; Weiss, DB; Orvieto, R. . Journal of Assisted Reproduction and Genetics. 2003年4月, 20 (4): 157–159. PMID 12762415. doi:10.1023/A:1022933320700.
↑  Free M, Alexander N.  (PDF). Public Health Rep. 1976, 91 (5): 437–45  [2007-03-06]. PMID 824668. （原始内容存档 (PDF)于2020-06-11）.
↑  Clark, S. . [Unpublished]. Sep 1981  [2015-10-21]. （原始内容存档于2015-09-24）.
↑  . Planned Parenthood. March 2004  [2008-03-28]. （原始内容存档于2015-03-29）.
↑  Harms, Roger W. . Women's health: Expert answers. MayoClinic.com. 2007-09-20  [2009-07-15]. （原始内容存档于2009-05-11）.
↑  Cornforth, Tracee. . About.com: Women's Health. 2003-12-02  [2009-07-15]. （原始内容存档于2009-02-21）.
↑  Delvin, David. . NetDoctor.co.uk. 2005-01-17  [2006-07-13]. （原始内容存档于2006-09-24）.
↑  . Abstinence & Natural Birth Control Methods. Sexually Transmitted Disease Resource. 2006  [2006-09-05]. （原始内容存档于2006-09-10）.
↑  . Contraceptive Technology Update. October 1993, 14 (10): 154–156. PMID 12286905.
↑  Masters, W.H., & Johnson, V.E. . Boston: Little, Brown and Company. 1970.
↑  文／屠俊,"做愛時不想戴套，射在外面就不會懷孕？婦產科主任：沒避孕效果又危害男性身體" （页面存档备份，存于）,風傳媒,澎湃新闻,2018-08-02.