[1] Max Planck Institute for Molecular Biomedicine,Department of Cell and Developmental Biology
[2] Institute for Biomedical Engineering,Department of Cell Biology
[3] RWTH Aachen University Medical School,Department of Clinical Andrology
[4] Helmholtz Institute for Biomedical Engineering,undefined
[5] RWTH Aachen University,undefined
[6] Centre for Reproductive Medicine and Andrology,undefined
[7] University of Münster,undefined
[8] Faculty of Medicine,undefined
[9] University of Münster,undefined