Surgical intervention and capsular contracture after breast augmentation: A prospective study of risk factors. - Henriksen,T.F.; Fryzek,J.P.; Holmich,L.R.; McLaughlin,J.K.; Kjoller,K.; Hoyer,A.P.; Olsen,J.H.; Friis,S. (Ann Plast Surg, 2005)