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Article
May 1975

Test Your Knowledge Quiz-Reply

Author Affiliations

Arcadia, Calif

Arch Dermatol. 1975;111(5):659. doi:10.1001/archderm.1975.01630170117030

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Abstract

To the Editor.—  Fry et al found decreased serum levels of IgM in four of 12 patients with dermatitis herpetiformis (Lancet 2:729-733,1967). As far as I know, this work has not been discredited. Yet, according to the answer to the Test Your Knowledge question in the Archives (110:252, 1974), one may not expect to find "decreased or undetermined serum levels of IgM" in dermatitis herpetiformis. When wrong answers are given, these quizzes really do "test your knowledge"!

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