Dynamic In Vivo 3D Atlantoaxial Spine Kinematics During Upright Rotation Bryan Rynearson, William Anderst, Tyler West, Madeline Preece, William Donaldson, Joon Lee. POSTER http://bdl.pitt.edu/wp-content/uploads/2017/03/Rynearson_-_AP_and_axial_view_rotation_video.mp4