[1] Univ Autonoma Nuevo Leon, Fa Med, Monterrey, Mexico
[2] Hosp Univ Dr Jose Eleuterio Gonzalez, Monterrey, Mexico
[3] Inst Nacl Ciencias Med & Nutr Salvador Zubiran, Mexico City, Mexico
[4] Inst Mexicano Seguro Social, Mexico City, Mexico
[5] Inst Mexicano Segura Social, Unidad Med Alta Especialidad 25, Monterrey, Mexico
[6] Clin Ruiz, Ctr Hematol & Med Interna, Puebla, Mexico
[7] Inst Tecnolog Estudios Sup Monterrey, Tec Salud, Clin Gomez Almaguer, Monterrey, Mexico
[8] Inst Nacl Cancerol, Mexico City, Mexico
[9] Inst Mexicano Seguro Social, Ctr Med Nacl Siglo 21, Mexico City, Mexico
[10] Hosp Infantil Teleton Oncol, Queretaro, Mexico
[11] Ctr Med Nacl 20 Noviembre, Mexico City, Mexico
[12] Inst Nacl Pediatria, Mexico City, Mexico
[13] Inst Mexicano Seguro Social, Ctr Med Nacl Manuel Avila Camacho, Puebla, Mexico
[14] Inst Mexicano Seguro Social, Ctr Med Nacl Raza, Mexico City, Mexico
[15] Hosp Angeles Puebla, Puebla, Mexico
[16] Hosp Cent Mil, Mexico City, Mexico
[17] Hosp Reg Alta Especialidad Bajio, Leon, Mexico
[18] Ctr Med ABC, Mexico City, Mexico
[19] Doctors Hosp, Monterrey, Mexico
[20] Hosp Cent Univ, Chihuahua, Mexico
[21] Hosp Puerta Hierro, Guadalajara, Mexico
[22] Inst Oncol Noroeste, Guadalajara, Mexico
[23] Hosp El Nino Poblano, Puebla, Mexico
[24] Hosp Angeles Lomas, Mexico City, Mexico
[25] Ctr Med Noroeste, Hermosillo, Mexico
[26] Hosp Angeles Acoxpa, Mexico City, Mexico
[27] Hosp Civil Guadalajara Juan Menchaca, Guadalajara, Mexico
[28] Clin Merida, Merida, Mexico
[29] Hosp Juarez Mexico, Mexico City, Mexico
[30] Hosp Infantil Mexico Dr Federico Gomez, Mexico City, Mexico