He teaches advanced laparoscopic urologic oncology at the European Association of Urology, the American Urological Association Annual Meetings, and the European Institute of Telemedicine. Dr Touijer’s research focuses on the development of innovative minimally invasive techniques, such as laparoscopy, robotic-assisted surgery, and image-guided interventions; the comparison of minimally invasive surgery to conventional open surgery with regards to cancer control and impact on the quality of life; and the implementation of metrics to objectively measure and assess surgical performance. His laboratory research focuses on studying lymph node metastases for genitourinary malignancies using cancer-targeted nanoprobes.