C3 segmental vertebral artery and its surgical implication in craniovertebral junction anomalies: Insights from two cases. - Das, Kuntal; Singh, Suyash; Rangari, Kamlesh; Khatri, Deepak; Dikshit, Priyadarshi; Sardhara, Jayesh; Bhaisora, Kamlesh; Srivastava, Arun; Behari, Sanjay (Journal of Craniovertebral Junction & Spine, 2021)