Department of Urology, University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Tremona Road, Southampton, Hampshire, SO16 6YD, UK.
Department of Urology, The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK.
University Hospital Southampton NHS Foundation Trust, Southampton, UK.
Department of Urology, University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Tremona Road, Southampton, Hampshire, SO16 6YD, UK. 

Department of Gastroenterology, Shizuoka General Hospital, 4-27-1, Kita-Ando, Aoi-Ku, Shizuoka-City, Shizuoka, 420-8527, Japan. 
Department of Gastroenterology, Shizuoka General Hospital, 4-27-1, Kita-Ando, Aoi-Ku, Shizuoka-City, Shizuoka, 420-8527, Japan.

From the Pancreatitis Centre East, Gastrounit, Copenhagen University Hospital.

Urology, Christian Medical College and Hospital, Vellore, India.
Nursing Services, Christian Medical College and Hospital, Vellore, India.
Biostatistics, Christian Medical College and Hospital, Vellore, India.
Clinical Pharmacology, Christian Medical College and Hospital, Vellore, India.

Department of Urology, Faculty of Medicine, Benha University, Benha, Egypt.
Division of Clinical Sciences, Northern Ontario School of Medicine, Thunder Bay, ON, Canada.
Department of Clinical and Chemical Pathology, Faculty of Medicine, Benha University, Benha, Egypt.
Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt.