He leads one of the largest and most successful Allergy research and training programs in the United States. He is the principal investigator on several National Institutes of Health grants, including a MERIT award, a U19, and a T32. He is an internationally renowned expert in the role of mast cells and arachidonic acid-derived lipid mediators in the pathogenesis of asthma and innate immunity. He has published over 100 original articles in peer-reviewed scientific journals on the immunologic basis of asthma, and over 50 reviews and textbook chapters.