Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WATTERSON JD,A randomized prospective blinded study validating the acquisition of ureteroscopy skills using a computer based virtual reality endourological simulator,J. Urol.,,,2002,168,,1928-1932,https://cir.nii.ac.jp/crid/1570572700227217664,https://doi.org/10.1016/s0022-5347(05)64265-6