作者单位:Florida Int Univ, Herbert Wertheim Coll Med, Mem Hlth Care Syst, Mem Canc Inst, Pembroke Pines, FL[1]Inst Nacl Enfermedades Neoplas, Dept Med Oncol, Lima, Peru[2]Florida Int Univ, Herbert Wertheim Coll Med, Mem Hlth Care Syst, Thorac Oncol Program,Mem Canc Inst[3]