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Computer model depicts projection of cervical pedicle axis with rsIP and rtIP on the anterior surface of vertebral bodies C3–C5 and C6–T1. The center cross from cephalad to caudad at C3–C5 and C6–T1 resembles mean data of rsIP and rtIP, and as such the conceivable entry points for ATPS into the right pedicles. The ellipsoid spots (blue, red, green) surrounding the center cross resemble the standard deviations for rsIP and rtIP
