1. Smooth Muscle Laboratory, Roskilde County Hospital Koege, University of Copenhagen, Koege, Denmark
2. Department of Urology, Roskilde County Hospital Koege, University of Copenhagen, Koege, Denmark
3. Department of Gastroenterology, Herlev Hospital, University of Copenhagen, Herlev, Roskilde County Hospital Koege, University of Copenhagen, Koege, Denmark
4. Department of Clinical Biochemistry, Roskilde County Hospital Koege, University of Copenhagen, Koege, Denmark