1)Borok TL et al: Role of ionizing irradiation for 393 keloids. Int J Radiat Oncol Biol Phys 15: 865-870, 1988
2)Kal HB et al: Dose-effect relationships for recur-rence of keloid and pterygium after surgery and radiotherapy. Int. J Radiat Oncol Biol Phys 74: 245-251, 2009
3)Spear SL et al: Experience with reduction mamma-plasty combined with breast conservation therapy in the treatment of breast cancer. Plast Reconstr Surg 111: 1102-1109, 2003
4)Bolke E et al: Unilateral keloid formation after bilateral breast surgery and unilateral radiation. Eur J Med Res 12: 320-322, 2007
5)Devalia H et al: A case of unilateral keloid after bilateral breast reduction. Int Semin Surg Oncol 5: 3, 2008