Affiliation: | 1. Department of Oncology, Benjamin Bloom Hospital, San Salvador, El Salvador;2. Amsterdam Institute for Social Sciences Research (AISSR), Amsterdam University, the Netherlands;3. International Outreach Program, St. Jude Children's Research Hospital, Memphis, Tenesse;4. Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tenesse;5. University of Tennessee, College of Medicine, Memphis, Tenesse |