乳房下垂 (Chinese Wikipedia)

Lauersen, Niels H.; Stukane, Eileen. The Complete Book of Breast Care 1st Trade Paperback. New York: Fawcett Columbine/Ballantine. 1998. ISBN 978-0-449-91241-6. ...there is no medical reason to wear a bra, so the decision is yours, based on your own personal comfort and aesthetics. Whether you have always worn a bra or always gone braless, age and breastfeeding will naturally fcause your breasts to sag.
Scurr, Joanna C.; White, Jennifer L.; Hedger, Wendy. The effect of breast support on the kinematics of the breast during the running gait cycle. Journal of Sports Sciences. 2010, 28 (10): 1103–9 [2015-02-24]. PMID 20686995. doi:10.1080/02640414.2010.497542. （原始内容存档于2013-06-21）. 简明摘要 – ScienceDaily (2007-09-23).

archive.today

Page, KA; Steele, JR. Breast motion and sports brassiere design. Implications for future research. Sports Medicine. April 1999, 27 (4): 205–11 [2015-02-24]. PMID 10367331. doi:10.2165/00007256-199927040-00001. （原始内容存档于2012-07-11）. Archive.today的存檔，存档日期2012-07-11

ayurvediccure.com

Breast Sagging. [2012-02-02]. （原始内容存档于2012-02-04）. （页面存档备份，存于互联网档案馆）

beautifulself.com

Younai, S. Sean. Breast Sagging - Ptosis. [2012-02-04]. （原始内容存档于2011-12-28）. （页面存档备份，存于互联网档案馆）

breastbook.com

Smith, Dr. R. Scott. Fuller Breasts: A Woman's Guide to Breast Augmentation. Breastbook.com. [2015-02-24]. （原始内容存档于2015-02-24）. （页面存档备份，存于互联网档案馆）

breathing.com

Cawthorne, Simon. Bras, the Bare Facts. Channel 4. 2000-10 [2015-02-09]. （原始内容存档于2012-07-13）. （页面存档备份，存于互联网档案馆）

calfreduction.net

Healthy Breast: Why You Should Wear Sports Bras on Every Workout?. [2012-02-04]. （原始内容存档于2012-08-23）. （页面存档备份，存于互联网档案馆）

channel4embarrassingillnesses.com

Sagging Breasts. Channel 4. 2009 [2012-02-03]. （原始内容存档于2008-05-02）. （页面存档备份，存于互联网档案馆）

chicagotribune.com

articles.chicagotribune.com

Franklin, Deborah. Busted! Let's Uplift The Truth And Separate The Myth From All Those Reasons Mother Gave Us For Wearing A Bra. Health Magazine /Universal Press Syndicate. 1993-05-26 [2011-02-19]. （原始内容存档于2017-07-08）. （页面存档备份，存于互联网档案馆）

doi.org

Page, KA; Steele, JR. Breast motion and sports brassiere design. Implications for future research. Sports Medicine. April 1999, 27 (4): 205–11 [2015-02-24]. PMID 10367331. doi:10.2165/00007256-199927040-00001. （原始内容存档于2012-07-11）. Archive.today的存檔，存档日期2012-07-11
Rinker, B; Veneracion, M; Walsh, C. The Effect of Breastfeeding on Breast Aesthetics. Aesthetic Surgery Journal. 2008, 28 (5): 534–7 [2015-02-24]. PMID 19083576. doi:10.1016/j.asj.2008.07.004. （原始内容存档于2012-07-03）.
Scurr, Joanna C.; White, Jennifer L.; Hedger, Wendy. The effect of breast support on the kinematics of the breast during the running gait cycle. Journal of Sports Sciences. 2010, 28 (10): 1103–9 [2015-02-24]. PMID 20686995. doi:10.1080/02640414.2010.497542. （原始内容存档于2013-06-21）. 简明摘要 – ScienceDaily (2007-09-23).

emedicine.com

Mastopexy 於 eMedicine

independent.co.uk

Stuart, Julia. Don't burn your bra just yet. The Independent. November 2, 2000 [4 February 2012]. （原始内容存档于2018-07-17）. （页面存档备份，存于互联网档案馆）

livescience.com

Thompson, Andrea. Breastfeeding Does Not Make Breasts Sag, Study Suggests. LiveScience.com. 2007-11-02 [2012-02-02]. （原始内容存档于2012-07-03）. （页面存档备份，存于互联网档案馆）
Rinker, B; Veneracion, M; Walsh, C. The Effect of Breastfeeding on Breast Aesthetics. Aesthetic Surgery Journal. 2008, 28 (5): 534–7 [2015-02-24]. PMID 19083576. doi:10.1016/j.asj.2008.07.004. （原始内容存档于2012-07-03）.

medbroadcast.com

Toffelmire, Amy. Why do breasts sag?. MedBroadcast.com. [2012-02-03]. （原始内容存档于2013-09-16）. （页面存档备份，存于互联网档案馆）

medscape.com

emedicine.medscape.com

De la Torre, J.I. Breast Mastopexy. 2009 [2012-02-02]. （原始内容存档于2019-12-07）. （页面存档备份，存于互联网档案馆）

newimage.com

Campolongo, Marianne. What Causes Sagging Breasts?. 2007-12-05 [2012-01-26]. （原始内容存档于2012-05-15）. （页面存档备份，存于互联网档案馆）

nih.gov

ncbi.nlm.nih.gov

Page, KA; Steele, JR. Breast motion and sports brassiere design. Implications for future research. Sports Medicine. April 1999, 27 (4): 205–11 [2015-02-24]. PMID 10367331. doi:10.2165/00007256-199927040-00001. （原始内容存档于2012-07-11）. Archive.today的存檔，存档日期2012-07-11
Rinker, B; Veneracion, M; Walsh, C. The Effect of Breastfeeding on Breast Aesthetics. Aesthetic Surgery Journal. 2008, 28 (5): 534–7 [2015-02-24]. PMID 19083576. doi:10.1016/j.asj.2008.07.004. （原始内容存档于2012-07-03）.
Scurr, Joanna C.; White, Jennifer L.; Hedger, Wendy. The effect of breast support on the kinematics of the breast during the running gait cycle. Journal of Sports Sciences. 2010, 28 (10): 1103–9 [2015-02-24]. PMID 20686995. doi:10.1080/02640414.2010.497542. （原始内容存档于2013-06-21）. 简明摘要 – ScienceDaily (2007-09-23).
Ashizawa K, Sugane A, Gunji T. Breast form changes resulting from a certain brassière. Journal of Human Ergology. 1990-06, 19 (1): 53–62. PMID 2092072.

parkercenter.net

Anatomy of Breast Ptosis – How Breasts Sag. [2012-02-04]. （原始内容存档于2013-08-24）. （页面存档备份，存于互联网档案馆）

sciencedaily.com

Scurr, Joanna C.; White, Jennifer L.; Hedger, Wendy. The effect of breast support on the kinematics of the breast during the running gait cycle. Journal of Sports Sciences. 2010, 28 (10): 1103–9 [2015-02-24]. PMID 20686995. doi:10.1080/02640414.2010.497542. （原始内容存档于2013-06-21）. 简明摘要 – ScienceDaily (2007-09-23).

web.archive.org

Stuart, Julia. Don't burn your bra just yet. The Independent. November 2, 2000 [4 February 2012]. （原始内容存档于2018-07-17）. （页面存档备份，存于互联网档案馆）
Thompson, Andrea. Breastfeeding Does Not Make Breasts Sag, Study Suggests. LiveScience.com. 2007-11-02 [2012-02-02]. （原始内容存档于2012-07-03）. （页面存档备份，存于互联网档案馆）
Campolongo, Marianne. What Causes Sagging Breasts?. 2007-12-05 [2012-01-26]. （原始内容存档于2012-05-15）. （页面存档备份，存于互联网档案馆）
Breast Sagging. [2012-02-02]. （原始内容存档于2012-02-04）. （页面存档备份，存于互联网档案馆）
Rinker, B; Veneracion, M; Walsh, C. The Effect of Breastfeeding on Breast Aesthetics. Aesthetic Surgery Journal. 2008, 28 (5): 534–7 [2015-02-24]. PMID 19083576. doi:10.1016/j.asj.2008.07.004. （原始内容存档于2012-07-03）.
Sagging Breasts. Channel 4. 2009 [2012-02-03]. （原始内容存档于2008-05-02）. （页面存档备份，存于互联网档案馆）
Toffelmire, Amy. Why do breasts sag?. MedBroadcast.com. [2012-02-03]. （原始内容存档于2013-09-16）. （页面存档备份，存于互联网档案馆）
Healthy Breast: Why You Should Wear Sports Bras on Every Workout?. [2012-02-04]. （原始内容存档于2012-08-23）. （页面存档备份，存于互联网档案馆）
Scurr, Joanna C.; White, Jennifer L.; Hedger, Wendy. The effect of breast support on the kinematics of the breast during the running gait cycle. Journal of Sports Sciences. 2010, 28 (10): 1103–9 [2015-02-24]. PMID 20686995. doi:10.1080/02640414.2010.497542. （原始内容存档于2013-06-21）. 简明摘要 – ScienceDaily (2007-09-23).
De la Torre, J.I. Breast Mastopexy. 2009 [2012-02-02]. （原始内容存档于2019-12-07）. （页面存档备份，存于互联网档案馆）
Younai, S. Sean. Breast Sagging - Ptosis. [2012-02-04]. （原始内容存档于2011-12-28）. （页面存档备份，存于互联网档案馆）
Anatomy of Breast Ptosis – How Breasts Sag. [2012-02-04]. （原始内容存档于2013-08-24）. （页面存档备份，存于互联网档案馆）
Female Intelligence Agency: Why do women wear bras?. 007b Breast. [2011-05-20]. （原始内容存档于2018-01-02）. （页面存档备份，存于互联网档案馆）
Female Intelligence Agency: What causes sagging of breasts?. 007b Breast. [2015-02-09]. （原始内容存档于2019-05-18）. （页面存档备份，存于互联网档案馆）
Cawthorne, Simon. Bras, the Bare Facts. Channel 4. 2000-10 [2015-02-09]. （原始内容存档于2012-07-13）. （页面存档备份，存于互联网档案馆）
Franklin, Deborah. Busted! Let's Uplift The Truth And Separate The Myth From All Those Reasons Mother Gave Us For Wearing A Bra. Health Magazine /Universal Press Syndicate. 1993-05-26 [2011-02-19]. （原始内容存档于2017-07-08）. （页面存档备份，存于互联网档案馆）
Smith, Dr. R. Scott. Fuller Breasts: A Woman's Guide to Breast Augmentation. Breastbook.com. [2015-02-24]. （原始内容存档于2015-02-24）. （页面存档备份，存于互联网档案馆）

webcitation.org

Toffelmire, Amy. Why do breasts sag?. MedBroadcast.com. [2012-02-03]. （原始内容存档于2013-09-16）. （页面存档备份，存于互联网档案馆）

wkhealth.com

content.wkhealth.com

Page, KA; Steele, JR. Breast motion and sports brassiere design. Implications for future research. Sports Medicine. April 1999, 27 (4): 205–11 [2015-02-24]. PMID 10367331. doi:10.2165/00007256-199927040-00001. （原始内容存档于2012-07-11）. Archive.today的存檔，存档日期2012-07-11