Jesi: I believe that Marianne Neifert (Dr. Mom) said that at a conference I attended many years ago - her topic was breast anatomy. I also believe that she arrived at that figure as she was doing research on breast anatomy/breast anomalies. Maybe if you Google her you can find something more concrete. Pam Hirsch, BSN,RN,IBCLC Clinical Lead, Lactation Services Advocate Good Shepherd Hospital Barrington, IL USA *********************************************** To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or digest) To unsubscribe: unsubscribe lactnet All commands go to [log in to unmask] The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(R) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html