Common haplotype dependency of high G gamma-globin gene expression and high HbF levels in beta-thalassemia and sickle cell anemia patients. - Labie,D.; Pagnier,J.; Lapoumeroulie,C.; Rouabhi,F.; Dunda-Belkhodja,O.; Chardin,P.; Beldjord,C.; Wajcman,H.; Fabry,M.E.; Nagel,R.L. (Proc Natl Acad Sci U S A, 1985)