University Medical Center (UMC) Utrecht, NL
e-mail: m.m.maurice@umcutrecht.nl
Stem Cell Institute, University of Cambridge, UK
e-mail: bkk25@cam.ac.uk
Institute of Molecular Genetics, Prague, CR
e-mail: vladimir.korinek@img.cas.cz
Karolinska Institutet Stockholm, Sweden
e-mail: Gunnar.Schulte@ki.se
Masaryk University, Brno, CR
e-mail: bryja@sci.muni.cz
