title: A 14-year-old boy with chronic cyanosis, mild anemia, and limited physical resistance to stress.
authors.affiliation: Department of Clinical Chemistry and Clinical Pharmacology, University of Bonn, Bonn, Germany. berndt.zur@ukb.uni-bonn.de
authors.forename: Berndt
authors.initials: B
authors.lastname: Zur
authors.forename: Bernd
authors.initials: B
authors.lastname: Mayer-Hubner
authors.forename: Michael
authors.initials: M
authors.lastname: Ludwig
authors.forename: Birgit
authors.initials: B
authors.lastname: Stoffel-Wagner
mesh_terms: D000293:Adolescent; D000740:Anemia / Q000150:complications / Q000175:diagnosis*; D002908:Chronic Disease; D003490:Cyanosis / Q000150:complications / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D009154:Mutation; D005082:Physical Exertion; D055544:beta-Globins / Q000235:genetics*
chemical_list: D055544:beta-Globins