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Siebenhaar F, Weller K, : clinical picture and update on diagnosis and treatment (May 2007). «Acquired cold urticaria: Clinical picture and update on diagnosis and treatment». Clin. Exp. Dermatol.32 (3): 241-5. PMID17355280. doi:10.1111/j.1365-2230.2007.02376.x.
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ncbi.nlm.nih.gov
Siebenhaar F, Weller K, : clinical picture and update on diagnosis and treatment (May 2007). «Acquired cold urticaria: Clinical picture and update on diagnosis and treatment». Clin. Exp. Dermatol.32 (3): 241-5. PMID17355280. doi:10.1111/j.1365-2230.2007.02376.x.