title: Problems in a simple two-possibility counting study.
mesh_terms: D003875:Drug Eruptions; D006801:Humans; D013421:Sulfamethoxypyridazine / Q000633:toxicity*
chemical_list: D013421:Sulfamethoxypyridazine
keywords: DERMATITIS MEDICAMENTOSA; SULFAMETHOXYPYRIDAZINE/toxicology