[1] Univ Milano Bicocca, Dept Biosci & Biotechnol, I-20126 Milan, Italy
[2] Univ Milano Bicocca, StemGen Spa, Unit Canc Stem Cell Biol, I-20126 Milan, Italy
[3] Univ Queensland, Queensland Brain Inst, Lab Neural Stem Cell Biol, Brisbane, Qld, Australia
[4] Hosp San Raffaele, Stem Cell Res Inst, I-20132 Milan, Italy
[5] Natl Neurol Inst C Besta, I-20133 Milan, Italy
[6] Johns Hopkins Univ, Dept Neurosurg, Baltimore, MD 21287 USA