title: The variable expression of sickle cell disease is genetically determined.
authors: Department of Pediatrics, University of Southern California School of Medicine, Los Angeles.
authors: D
authors: D
authors: Powars
authors: L S
authors: LS
authors: Chan
authors: W A
authors: WA
authors: Schroeder
mesh_terms: D000755:Anemia, Sickle Cell / Q000150:complications / Q000235:genetics* / Q000401:mortality; D002872:Chromosome Deletion; D006801:Humans; D005810:Multigene Family; D012720:Severity of Illness Index