title: Polyostotic Langerhans cell histiocytosis and El Niño: a novel hypothesis.
authors.forename: Chien-Jen
authors.initials: CJ
authors.lastname: Chen
mesh_terms: D002980:Climate; D006646:Histiocytosis, Langerhans-Cell / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D012621:Seasons; D013624:Taiwan / Q000453:epidemiology