title: Index of suspicion.
authors.affiliation: Children's National Health System, Washington, DC.
authors.forename: Stephanie
authors.initials: S
authors.lastname: Todd
authors.affiliation: Children's Hospital of Michigan, Detroit, MI,* and.
authors.forename: Rajan
authors.initials: R
authors.lastname: Arora
authors.affiliation: Children's Hospital of Michigan, Detroit, MI,* and.
authors.forename: Nirupama
authors.initials: N
authors.lastname: Kannikeswaran
authors.affiliation: Department of Pediatrics, St John Hospital and Medical Center, Detroit, MI.
authors.forename: Iqbal
authors.initials: I
authors.lastname: Allarakhia
authors.affiliation: Children's Hospital of Michigan, Detroit, MI,* and.
authors.forename: Lalitha
authors.initials: L
authors.lastname: Sivaswamy
authors.affiliation: Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA.
authors.forename: Matthew B
authors.initials: MB
authors.lastname: Wallenstein
authors.affiliation: Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA.
authors.forename: Elizabeth B
authors.initials: EB
authors.lastname: Burgener
authors.affiliation: Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA.
authors.forename: Jenna
authors.initials: J
authors.lastname: Klotz
authors.affiliation: Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA.
authors.forename: John A
authors.initials: JA
authors.lastname: Kerner
mesh_terms: D000140:Acidosis, Lactic / Q000209:etiology; D000293:Adolescent; D003093:Colitis, Ulcerative / Q000601:surgery; D004417:Dyspnea / Q000209:etiology; D005221:Fatigue / Q000209:etiology; D005334:Fever / Q000209:etiology; D006261:Headache / Q000209:etiology; D020042:Histiocytic Necrotizing Lymphadenitis / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D007223:Infant; D007888:Leigh Disease / Q000175:diagnosis* / Q000235:genetics; D008297:Male; D009123:Muscle Hypotonia / Q000209:etiology; D011183:Postoperative Complications; D013832:Thiamine Deficiency / Q000175:diagnosis*; D015431:Weight Loss