1, 14 HER2 overexpression and or amplification is found in 15 to 20 of all MBC paediatric dose of augmentin Address for correspondence Hee Chul Shin, MD, Breast Clinic, Department of Surgery, Seoul National University Hospital, College of Medicine, 82, Gumi ro 173 Beon gil, Bundang gu, Seongnam si, Gyeonggi do 13620, Republic of Korea