Mariel (Molly) Smith is an attending physician in Pediatric Hematology/Oncology at MassGeneral Hospital for Children.  Dr. Smith grew up on Long Island and then attended Wellesley College where she obtained a B.A. in Neuroscience and also minored in Psychology.  She then went on to obtain her medical degree from Weill Cornell Medical College in New York City.  Dr. Smith remained at New York Presbyterian Hospital-Cornell for her Pediatrics residency and then did a Chief Resident year in Pediatrics at Memorial Sloan Kettering Cancer Center.  During her residency she became interested in pediatric hemostasis/thrombosis and completed a research project evaluating the incidence of venous thrombosis in pediatric intensive care unit patients, and associated risk factors.  She then completed her fellowship training in Pediatric Hematology/Oncology at the joint Memorial Sloan Kettering/New York Presbyterian Hospital-Cornell program.  Her research during fellowship focused on the identification of targeted combination therapies for alveolar rhabdomyosarcoma.  Dr. Smith's principal clinical interests include the care of children with disorders of hemostasis and thrombosis, and with hematologic malignancies.