APA
Boos N., Kalberer F. & Schoeb O. (2001). Retroperitoneal Endoscopically Assisted Minilaparotomy for Anterior Lumbar Interbody Fusion: Technical Feasibility and Complications. : Spine.
Chicago
Boos Norbert, Kalberer Fabian and Schoeb Othmar. 2001. Retroperitoneal Endoscopically Assisted Minilaparotomy for Anterior Lumbar Interbody Fusion: Technical Feasibility and Complications. : Spine.
Harvard
Boos N., Kalberer F. and Schoeb O. (2001). Retroperitoneal Endoscopically Assisted Minilaparotomy for Anterior Lumbar Interbody Fusion: Technical Feasibility and Complications. : Spine.
MLA
Boos Norbert, Kalberer Fabian and Schoeb Othmar. Retroperitoneal Endoscopically Assisted Minilaparotomy for Anterior Lumbar Interbody Fusion: Technical Feasibility and Complications. : Spine. 2001.