title: Use of patch testing for identifying allergen causing chronic urticaria.
authors.forename: Kaushal K
authors.initials: KK
authors.lastname: Verma
mesh_terms: D000485:Allergens / Q000009:adverse effects; D002908:Chronic Disease; D006801:Humans; D010328:Patch Tests / Q000379:methods*; D014581:Urticaria / Q000175:diagnosis* / Q000276:immunology
chemical_list: D000485:Allergens