1. Urticaria and angioedema, A review of 554 patients;Campion;Br J Dermatol,1969
2. Low incidence of dermographism in subacute and chronic urticaria;Fisher;Arch Dermatol Syphilology,1953
3. Urticaria, in Allergic Skin Diseases;Fukushiro,1976
4. Allergic diseases of the gastrointestinal tract;Urbach,1946
5. Eczema;Ofuji,1980