Mo Li, Keiichiro Suzuki, Jing Qu, Preeti Saini, Ilir Dubova, Fei Yi, Jungmin Lee, Ignacio Sancho-Martinez, Guang-Hui Liu and Juan Carlos Izpisua Belmonte. "Efficient correction of hemoglobinopathy-causing mutations by homologous recombination in integration-free patient iPSCs" Cell Research volume 21, (2011): 1740–1744