@misc{indiciaee09637d7fbd7, title = {Subspeciality training in neurosurgery.}, author = {C Ostertag}, year = {1997}, doi = {10.1007/978-3-7091-6860-8\_31}, url = {https://pubmed.ncbi.nlm.nih.gov/9253458/}, note = {Source identifier: 9253458} }