Optimizing clinical trial design using prospective cohort study data: a case study in neuro-urology.

Anderson CE, Birkhäuser V, Stalder SA, Bachmann LM, Curt A, Jordan X, Leitner L, Liechti MD, Mehnert U, Möhr S, Pannek J, Schubert M, van der Lely S, Kessler TM, Brinkhof MWG.