title: Author response.
authors.forename: Jeffrey W
authors.initials: JW
authors.lastname: Langsam
mesh_terms: D003882:Dermatomyositis / Q000150:complications* / Q000175:diagnosis*; D006801:Humans; D051359:Lymphohistiocytosis, Hemophagocytic / Q000150:complications* / Q000175:diagnosis*; D008297:Male