title: [Preliminary study of the relation between epidemic erythermalgia and El Niño].
authors.forename: X J
authors.initials: XJ
authors.lastname: Wang
mesh_terms: D002681:China; D004916:Erythromelalgia / Q000145:classification* / Q000453:epidemiology; D006801:Humans; D012189:Retrospective Studies; D014887:Weather