“…VectorVision (BrainLAB, Germany) 102,106‐108 appeared four times. The Brainlab Curve navigation system (Brainlab AG, Munich, Germany) 104,109,110 appeared three times in papers. Medtronic Stealth S7 (Medtronic, Inc, Littleton, Massachusetts), 111,112 StealthStation TREON Plus (Medtronic Navigation, Louisville, Kentucky), 113,114 and the BrainLAB system 115,116 and Renaissance system (Mazor Robotics, Ltd, Caesarea, Israel) 76,100 appeared twice.…”