Complications and conversions of upper tract urological laparoendoscopic single-site surgery (LESS): Multicentre experience: Results from the NOTES Working Group

Brian H. Irwin, Jeffrey A Cadeddu, Chad R. Tracy, Fernando J. Kim, Wilson R. Molina, Abhay Rane, Chandru P. Sundaram, James H. Raybourn, Robert J. Stein, Inderbir S. Gill, Louis R. Kavoussi, Lee Richstone, Mihir M. Desai