title: A midlife crisis.
authors.affiliation: Vanderbilt University School of Medicine, Nashville, TN 37232-4700, USA.
authors.forename: K
authors.initials: K
authors.lastname: Wrenn
authors.forename: S W
authors.initials: SW
authors.lastname: Wright
authors.forename: L P
authors.initials: LP
authors.lastname: Kent
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000328:Adult; D000531:Altitude; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009051:Mountaineering; D012805:Sickle Cell Trait / Q000150:complications / Q000175:diagnosis*; D013163:Splenomegaly / Q000175:diagnosis / Q000209:etiology