You can easily search a majority of the Penn Libraries journal titles about Allergy, Immunology, and Immunotherapy in Browzine.
Immune System Diseases — Diseases — University of Pennsylvania — BrowZine
Below are direct links to a selection of these titles.
The Washington Manual Allergy, Asthma, and Immunology Subspecialty Consult by 
Food Allergy: From Molecular Mechanisms to Control Strategies by 
Handbook of Otolaryngic Allergy by 
Wheat Syndromes : How Wheat, Gluten and ATI Cause Inflammation, IBS and Autoimmune Diseases by 
Allergic Diseases - From Basic Mechanisms to Comprehensive Management and Prevention by 
Patch Testing and Prick Testing: A Practical Guide by 
