title: Squaric acid dibutylester in alopecia areata: is discomfort really necessary?
mesh_terms: D000506:Alopecia Areata / Q000188:drug therapy*; D003503:Cyclobutanes / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use; D006801:Humans
chemical_list: D003503:Cyclobutanes; C020637:squaric acid dibutyl ester