Comment on

• Benign prostatic hyperplasia: prostatic arterial embolization versus transurethral resection of the prostate--a prospective, randomized, and controlled clinical trial.

  Gao YA, Huang Y, Zhang R, Yang YD, Zhang Q, Hou M, Wang Y. Gao YA, et al. Radiology. 2014 Mar;270(3):920-8. doi: 10.1148/radiol.13122803. Epub 2013 Nov 13. Radiology. 2014. PMID: 24475799 Clinical Trial.
• Zelen design in randomized controlled clinical trials.

  Richter F, Dewey M. Richter F, et al. Radiology. 2014 Sep;272(3):919. doi: 10.1148/radiol.14140834. Radiology. 2014. PMID: 25153279 No abstract available.