title: [A case of a prolonged course of primary chronic X histiocytosis].
authors.forename: E D
authors.initials: ED
authors.lastname: Beshlieva
authors.forename: N I
authors.initials: NI
authors.lastname: Kokina
authors.forename: V T
authors.initials: VT
authors.lastname: Ivashkin
authors.forename: I A
authors.initials: IA
authors.lastname: Sokolina
mesh_terms: D002908:Chronic Disease; D003937:Diagnosis, Differential; D018450:Disease Progression; D006646:Histiocytosis, Langerhans-Cell / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged