TY - RPRT TI - A virtual-reality-based haptic surgical training system. AU - Holger Weiss AU - Tobias Ortmaier AU - Heiko Maass AU - Gerd Hirzinger AU - Uwe Kuehnapfel PY - 2003 DO - 10.3109/10929080309146063 UR - https://pubmed.ncbi.nlm.nih.gov/15529957/ ID - 15529957 ER -