[1] Mem Sloan Kettering Canc Ctr, Dept Surg, Breast Serv, New York, NY 10021 USA
[2] Mem Sloan Kettering Canc Ctr, Dept Epidemiol & Biostat, Biostat Serv, New York, NY 10021 USA
[3] Mem Sloan Kettering Canc Ctr, New York, NY USA
[4] Mem Sloan Kettering Canc Ctr, Dept Anesthesiol & Crit Care Med, New York, NY 10021 USA