Fig. 1.

Schematic digital video transport system (DVTS) network configuration between location (A) where the endoscopic live procedure is being demonstrated, and location (B) where the trainee watches the demonstration. GW, gateway; KJCN, Korea-Japan Cable Network; HMC, Hanyang University Medical Center; AMC, Asan Medical Center; KUMC, Korea University Medical Center; SCHUH, Soonchunhyang University Hospital; SNUBH, Seoul National University Bundang Hospital; AJOUMC, Ajou University Medical Center; CBNUH, Chungbuk National University Hospital; CNUH, Chungnam National University Hospital; KRCH, Kyoto Red Cross Hospital; PAICL of HYU, Paiknam Academic Informatino Center & Library of Hanyang University; GHH, Grand Hilton Hotel.