Columbia University Irving Medical Center (CUIMC) – Sid and Helaine Lerner Professor of Global Integrative Medicine in the Division of Pediatric Hematology/Oncology/Stem Cell Transplant

International Initiative for Pediatrics and Nutrition (IIPAN) – Founder and Director, based at CUIMC

International Agency for Research on Cancer (IARC), World Health Organization (WHO) – Collaborator since 2019 on multinational nutrition bio-banking programs in pediatric oncology