[1] BOKU Univ Vienna, Dept Biotechnol, Vienna, Austria
[2] Chalmers, Dept Chem & Biol Engn Phys Chem, S-41296 Gothenburg, Sweden
[3] ACIB GmbH, Austrian Ctr Ind Biotechnol, Graz, Austria
[4] Chinese Acad Sci, Key Lab Regenerat Biol, Guangzhou, Guangdong, Peoples R China
[5] Chinese Acad Sci, Guangzhou, Guangdong, Peoples R China
[6] Univ Bonn, Inst Reconstruct Neurobiol, Stem Cell Engn Grp, Bonn, Germany
[7] Univ Wurzburg, Stem Cell & Regenerat Med Grp, Inst Anat & Cell Biol, Wurzburg, Germany