Green NS, Ender KL, Pashankar F, Driscoll C, Giardina PJ, Mullen CA, Clark LN, Manwani D, Crotty J, Kisselev S, Neville KA, Hoppe C, Barral S. Candidate sequence variants and fetal hemoglobin in children with sickle cell disease treated with hydroxyurea. PLoS One. 2013; 8(2):e55709.