1 Departamento de Urologia, Universidade Federal do Parana - UFPR, Curitiba, PR, Brasil.
2 Instituto Mexicano del Seguro Social. Centro Medico Nacional, Unidad Medica De Alta especialidade No.14 "Lic. Adolfo Ruiz Cortines" Veracruz, Mexico.
3 Centro Medico Puerta de Hierro, Zapopan, Jalisco, Mexico.
4 CIHSR Referral Hospital, Nagaland, India.
5 Departament of Endourological, Pavlov First Saint Petersburg Medical University, Russia.
6 Department of Urology, Sri Venkateswara Institute Of Medical Sciences, Tirupati, Andhra Pradesh, India.