[1] US Mexico Border Hlth Commiss, Tijuana Populat Based Canc Registry, Tijuana, Mexico
[2] Hosp Gen Tijuana, Pediat Hematol Oncol Unit, Tijuana, Mexico
[3] Univ Valle, Dept Pathol, Cali Populat Based Canc Registry, Cali, Colombia
[4] Natl Canc Inst, Canc Control & Prevent Program, Mexican Natl Canc Registry, Mexico City, DF, Mexico
[5] Univ Nacl Autonoma Mexico, Canc Biomed Res Unit, Mexico City, DF, Mexico
[6] Minist Hlth, Commiss Natl Inst Hlth & High Specialty Hosp, Mexico City, DF, Mexico
[7] Univ Calif San Diego, Dept Pediat, Div Pediat Hematol Oncol, La Jolla, CA 92093 USA
[8] Univ Calif San Diego, Moores Canc Ctr, Div Populat Sci Dispar & Community Engagement, La Jolla, CA USA
[9] Rady Childrens Hosp San Diego, Peckham Ctr Canc & Blood Disorders, San Diego, CA USA