title: Granuloma annulare caused by injectable collagen.
mesh_terms: D003094:Collagen / Q000009:adverse effects*; D003875:Drug Eruptions / Q000209:etiology*; D005260:Female; D006099:Granuloma / Q000139:chemically induced*; D006801:Humans; D007271:Injections, Intradermal; D008875:Middle Aged
chemical_list: D003094:Collagen