Nayak HK, Krishna VP, Mohindra S, Saraswat VA, Mohindra N, Pande G.
Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.
Department of Radiodiagnosis, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.

Fojecki GL, Tiessen S, Osther PJ.
Department of Urology, Hospital of Southern Jutland, University of Southern Denmark, Sønderborg, Denmark.
Department of Urology, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
Urological Research Center, Department of Urology, Lillebaelt Hospital, University of Southern Denmark, Fredericia, Denmark.

Clavijo RI, Kohn TP, Kohn JR, Ramasamy R.
Department of Urology, University of California, Los Angeles, CA, USA.
Baylor College of Medicine, Houston, TX, USA.
Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA.

Long Q, Li X, He H, He D.
Department of Urology, First affiliated hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China.

Angulo JC, Arance I, de Las Heras MM, Meilán E, Esquinas C, Andrés EM.
Servicio de Urología, Hospital Universitario, Getafe, Madrid, España; Departamento Clínico, Facultad de Ciencias Biomédicas, Universidad Europea de Madrid, Laureate Universities, Getafe, Madrid, España.
Análisis Estadísticos PerTICA, S. L., Madrid, España.