@inproceedings{bichlmeierISMAR2009, author = {C. Bichlmeier and S. Holdstock and S. M. Heining and S. Weidert and and E. Euler and O. Kutter and N. Navab}, title = {{Contextual In-Situ Visualization for Port Placement in Keyhole Surgery: Evaluation of Three Target Applications by Two Surgeons and Eighteen Medical Trainees}}, booktitle = {{Proceedings of the 8th International Symposium on Mixed and Augmented Reality (ISMAR)}}, month = oct, year = {2009}, pages = {}, }