@misc{indiciae185c78976e09, title = {Spinal markers: A new method for increasing accuracy in spinal navigation.}, author = {D Winkler and H E Vitzthum and V Seifert}, year = {1999}, doi = {10.1002/(sici)1097-0150(1999)4:2<101::aid-igs5>3.0.co;2-1}, url = {https://pubmed.ncbi.nlm.nih.gov/10494140/}, note = {Source identifier: 10494140} }