1 Division of Pediatric Urology, Department of Urology, İstanbul University İstanbul Faculty of Medicine, İstanbul, Turkey. Electronic address: m_irfan83@yahoo.com.
2 Department of Pediatric Urology, Erciyes University Faculty of Medicine, Kayseri, Turkey. Electronic address: dr_numan38@hotmail.com.
3 Department of Pediatric Urology, Erasmus MC University Medical Center, Rotterdam-Sophia Children's Hospital, Rotterdam, the Netherlands. Electronic address: l.thoen@erasmusmc.nl.
4 Division of Paediatric Urology, Beacon Hospital, University College Dublin, Dublin, Ireland. Electronic address: Fokelly@rcsi.ie.
5 Paediatric Urology, Meyer Children Hospital, University of Florence, Florence, Italy. Electronic address: simone.sforza1988@gmail.com.
6 Department of Urology, University Medical Center Groningen, Groningen, the Netherlands. Electronic address: rianne_lammers@hotmail.com.
7 Ospedale Pediatrico G Salesi, Department of Pediatric Urology, G Salesi Paediatric Hospital, Ancona, Italy. Electronic address: edo.bindi88@hotmail.it.
8 Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico, Department of Pediatric Urology, Milano Italy. Electronic address: irene.paraboschi01@gmail.com.
9 Department of Pediatric Urology, Hospital of the Sisters of Charity, Linz, Austria. Electronic address: Bernhard.Haid@ordensklinikum.at.
10 Division of Pediatric Urology, Department of Urology, Fundació Puigvert, Barcelona, Spain. Electronic address: yesicayquiroz@gmail.com.
11 Department of Urology, University Hospital El Clinico, Madrid, Spain. Electronic address: banuelos.marco@gmail.com.