【作者】Richard P Davis1, Magdaline Costa1, Catarina Grandela1, Andrew M Holland1, Tanya Hatzistavrou1, Suzanne J Micallef1, Xueling Li1, Adam L Goulburn1, Lisa Azzola1, Andrew G Elefanty1 & Edouard G Stanley1 【文题】A protocol for removal of antibiotic resistance cassettes from human embryonic stem cells genetically modified by homologous recombination or transgenesis