- Correspondence to Dr Benjamin N Breyer, UCSF Department of Urology, Chief of Urology, San Francisco General Hospital, 1001 Potrero Ave, Suite 3a20, San Francisco, CA 94110, USA;
- Received 19 April 2016
- Revised 6 October 2016
- Accepted 8 October 2016
- Published online 20 April 2017.
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