1 Department of Urology, Helios Hospital Bad, Saarow, Germany.
2 Deparment of Urology, Universitätsmedizin Berlin Charité, Berlin, Germany.
3 Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, United States.
4 INSERM (French National Institute of Health and Medical Research) UMR_S1260, Université de Strasbourg, Regenerative Nanomedicine, Centre de Recherche en Biomédecine de Strasbourg, Strasbourg, France.