title: A 4-year-old girl with purpuric skin lesions.
authors.affiliation: Department of Pediatrics, Medical College of Wisconsin, Milwaukee, USA.
authors.forename: G
authors.initials: G
authors.lastname: Ryu
authors.forename: M V
authors.initials: MV
authors.lastname: Lasley
authors.forename: M C
authors.initials: MC
authors.lastname: Zacharisen
mesh_terms: D002675:Child, Preschool; D003183:Complement C6 / Q000172:deficiency*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008589:Meningococcal Infections / Q000097:blood* / Q000175:diagnosis*; D011693:Purpura / Q000175:diagnosis*; D012871:Skin Diseases / Q000175:diagnosis*
chemical_list: D003183:Complement C6