I have 25 years of experience, and specialize in the field of allergy and immunology with specific knowledge in the areas of occupational lung disease, asthma, and anaphylaxis. I have published on such topics as environmental causes of allergy, occupational asthma, and clinical therapeutics. I have testified 25 times on topics such as occupational asthma, severe drug reactions, anaphylactic death, chemical sensitivities, and mold allergy.