title: Contact allergic purpura to wool dust.
mesh_terms: D000328:Adult; D000818:Animals; D003877:Dermatitis, Contact / Q000209:etiology*; D009783:Dermatitis, Occupational / Q000209:etiology*; D004391:Dust; D006801:Humans; D008297:Male; D011693:Purpura / Q000209:etiology*; D014935:Wool / Q000009:adverse effects*
chemical_list: D004391:Dust