title: Merthiolate testing in twins.
abstract: Positive and negative patch tests to merthiolate occur with the same frequency in monozygotic and dizygotic twin pairs. There is no correlation to strong or weak reactions to primary irritants. Consequently, the positive merthiolate reactions should be considered allergic rather than irritant.
mesh_terms: D000293:Adolescent; D000328:Adult; D003877:Dermatitis, Contact / Q000175:diagnosis; D005035:Ethylmercury Compounds / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D010328:Patch Tests; D011247:Pregnancy; D013849:Thimerosal / Q000009:adverse effects*; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic
chemical_list: D005035:Ethylmercury Compounds; D013849:Thimerosal