•Immediate Past President of the Asia-Pacific Academy of Pediatric Allergy, Respirology and Immunology (APAPARI).

•Been One of the Board of Directors of the Global Initiative for Asthma (GINA) and one of the GINA Assembly members since 2008.

•One of the steering committee members of the ISAAC (International Study of Asthma and Allergies in Childhood) research group.

•Among other duties within many editorial boards, he is also an associate editor of New England Journal of Medicine

•Published over 350 indexed original research articles and review articles in his field