Alexandre earned his MS in Biomedical Sciences and MD from Leiden University Medical Center in The Netherlands. He completed his pediatric residency training at Lincoln Medical Center in the Bronx, NY. He is currently a clinical fellow in Pediatric Hematology/Oncology at MSKCC/Weill Cornell Medicine. His additional interest within Pediatric Hematology/Oncology lies in hematopoietic stem cell transplant, more specifically in immune reconstitution in the post-transplant phase.