Surgical Resection With or Without Axillary Lymph Node Dissection in Treating Women With Node-Negative Breast Cancer and Sentinel Lymph Node Micrometastases

Instituto Nacional de Enfermedades Neoplasicas, Lima

Waikato Hospital, Hamilton

Sydney Cancer Centre at Royal Prince Alfred Hospital, Sydney

Mater Hospital - North Sydney, North Sydney

Royal North Shore Hospital, St Leonards

Westmead Institute for Cancer Research at Westmead Hospital, Westmead

Lismore Base Hospital, Lismore

St Vincents Hospital, Lismore

Riverina Cancer Care Centre, Wagga Wagga

Horsholm Sygenus, Hørsholm

Royal Melbourne Hospital, Parkville

Royal Adelaide Hospital Cancer Centre, Adelaide

St. John of God Hospital - Bunbury, Bunbury

Istituto Scientifico H. San Raffaele, Milan

European Institute of Oncology, Milan

Ospedale Alessandro Manzoni, Lecco

Ospedali Riuniti di Bergamo, Bergamo

Centro di Riferimento Oncologico - Aviano, Aviano

University of Bologna Medical School, Bologna

Universita di Ferrara, Ferrara

CHU Liege - Domaine Universitaire du Sart Tilman, Liège

Hospital de Clinicas de Porto Alegre, Porto Alegre

Institut Gustave Roussy, Villejuif

Fondazione Salvatore Maugeri, Pavia

North Shore Hospital, Auckland

Institute of Oncology - Ljubljana, Ljubljana

Kantonspital Aarau, Aarau

Oncology Institute of Southern Switzerland, Bellinzona

Inselspital Bern, Bern

Centre Hospitalier Universitaire Vaudois, Lausanne

Kantonsspital - St. Gallen, Sankt Gallen