Van Batavia JP, Tasian GE.
Division of Urology, The Children's Hospital of Philadelphia, USA.
Division of Urology and Epidemiology, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Perelman School of Medicine, USA; Division of Urology and Center for Pediatric Clinical Effectiveness, The Children's Hospital of Philadelphia, USA.

Vogt B, Desfemmes FN, Desgrippes A, Ponsot Y.
Department of Urology, Blois Polyclinic, La Chaussee Saint-Victor, France.
Department of Urology, University of Sherbrooke, Sherbrooke, Canada.

Ozgor F, Tosun M, Kayali Y, Savun M, Binbay M, Tepeler A.
Department of Urology, Haseki Teaching and Research Hospital , Istanbul, Turkey.
Department of Urology, Faculty of Medicine, Bezmialem Vakif University , Istanbul, Turkey.
Deparment of Urology, SJ Austria Hospital , Istanbul, Turkey.

Mustafa M, Aburas H, Helo F, Qarawi L.
An-najah University hospitalnablus, Palestine.
An-najah National University Faculty of Medicine and Health Sciences, 455978, Nablus, Palestine.

Carvalho M, Erbano BO, Kuwaki EY, Pontes HP, Liu JW, Boros LH, Asinelli MO, Baena CP.
Escola de Medicina, PUCPR-Pontifícia Universidade Católica do Paraná, Rua Imaculada Conceição, 1155-Prado Velho, Curitiba, Paraná, Brazil.
Hospital de Clínicas, UFPR-Universidade Federal do Paraná, Rua General Carneiro, 181-Alto da Glória, Curitiba, Paraná, Brazil.
Hospital Marcelino Champagnat, Av. Pres. Affonso Camargo, 1399-Cristo Rei, Curitiba, Paraná, Brazil.