title: A 20-month-old boy with fever for 23 days.
authors.affiliation: Division of Rheumatology, Children's Memorial Hospital, USA. klein-gitelman@northwestern.edu
authors.forename: Marisa S
authors.initials: MS
authors.lastname: Klein-Gitelman
mesh_terms: D001171:Arthritis, Juvenile / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005076:Exanthema / Q000175:diagnosis / Q000209:etiology; D005334:Fever / Q000209:etiology*; D006801:Humans; D007223:Infant; D051359:Lymphohistiocytosis, Hemophagocytic / Q000175:diagnosis*; D055501:Macrophage Activation Syndrome / Q000175:diagnosis*; D008297:Male