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In the article entitled "Accuracy in the Clinical Diagnosis of Malignant Melanoma" that appeared in the June issue of the Archives (Arch Dermatol. 1990;126:763-766), an equation was missing in the first column on page 764, immediately after line 35. The equation should have appeared as follows:
Missing Equation. Arch Dermatol. 1990;126(11):1461. doi:10.1001/archderm.1990.01670350075011