Genetic Modifiers of White Blood Cell Count, Albuminuria and Glomerular Filtration Rate in Children with Sickle Cell Anemia. oleh Beverly A Schaefer, Jonathan M Flanagan, Ofelia A Alvarez, Stephen C Nelson, Banu Aygun, Kerri A Nottage, Alex George, Carla W Roberts, Connie M Piccone, Thad A Howard, Barry R Davis, Russell E Ware