American Academy of Allergy Asthma & Immunology (AAAAI)
A national organization of Board Certified  Allergists and Immunologists. 

American College of Allergy, Asthma & Immunology (ACAAI)
A national organization of Board Certified  Allergists and Immunologists. 

World Allergy Organization (WAO)
Global Allergy Information Network (GAIN) is a source of allergy information worldwide for medical professionals and consumers.

American Thoracic Society (ATS)
Medical branch of the American Lung Association. 
      

Food Allergy Research and Education (FARE)
The Food Allergy & Anaphylaxis Network - The trusted source in food allergies.

PubMed
MEDLINE search of National Library of Medicine.