Alvarez E, Seppa M, Rivas S, Fuentes L, Valverde P, Antill?n-Klussmann F, Castellanos M, Sweet-Cordero EA, Messacar K, Kurap J, Bustamante M, Howard SC, Efron B, Luna-Fineman S. Improvement in treatment abandonment in pediatric patients with cancer in Guatemala. Pediatr Blood Cancer. 2017 Oct; 64(10).