[1] Fdn Santa Fe Bogota, Clin & Translat Oncol Grp, Bogota, Colombia
[2] Inst Nacl Cancerol INCAN, Thorac Oncol Clin, Mexico City, DF, Mexico
[3] Inst Nacl Cancerol INCAN, Lab Expt Oncol, Mexico City, DF, Mexico
[4] Hosp Clin, Udelar, Uruguay
[5] Hosp San Juan De Dios Ccss, San Jose, Costa Rica
[6] Alexander Fleming, Oncol, Buenos Aires, DF, Argentina
[7] Fdn Clin & Appl Canc Res Ficmac, Bogota, Colombia
[8] Inst Enfermedades Neoplas, Lima, Peru
[9] Fdn Invest, Buenos Aires, DF, Argentina
[10] Policlin Metropolitana, Caracas, Venezuela
[11] Grp Trabajo Oncol Med, Maracaibo, Venezuela
[12] Canc Therapeut Innovat Grp, New York, NY USA
[13] Catalan Inst Oncol, Barcelona, Spain