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2. Subcranial extended anterior approach for skull base tumors: Surgical procedure and reconstruction;Raveh,1998
3. The transbasal approach to tumors invading the base of the skull;Derome,1977
4. The extended frontal approach to tumors of the anterior, middle, and posterior skull base;Sekhar;J Neurosurg,1992
5. The transmaxillary approach to the clivus;Crockard,1993