Pevny I, Hartmann A, Metz J
Hautarzt. 1977 Nov;28(11):600-3.
A case of vitamin B12 allergy is reported. Typical eczematous and exanthematic skin lesions appeared after long-term and high-dosed intake of a vitamin B12 drug (Biovital). Patch tests with vitamin B12 were positive. This observation of vitamin B12 allergy we compared with previous published cases.
报告了一例维生素B12过敏病例。长期大剂量摄入一种维生素B12药物（活力维他）后出现典型的湿疹性和疹性皮肤损害。维生素B12斑贴试验呈阳性。我们将这例维生素B12过敏观察结果与先前发表的病例进行了比较。
