TY - JOUR T1 - Is sentinel node biopsy reliable in large breast tumors? A1 - Koukouras A1 - Spyropoulos,C. A1 - Siasos,N. A1 - E.Sdralis A1 - Tzorakoleftherakis,E. JO - European Journal of Gynaecological Oncology VL - 31 IS - 1 SP - 80 EP - 82 SN - 2709-0086 Y1 - 2011 ER -