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Freeman MD, Rosa S, Harshfield D, Smith F, Bennett R, Centeno CJ, Kornel E, Nystrom A, Heffez D, Kohles SS (2010). "A case-control study of cerebellar tonsillar ectopia (Chiari) and head/neck trauma (whiplash)". Brain Injury. 24 (7–8): 988–94. doi:10.3109/02699052.2010.490512. PMID20545453. S2CID9553904.
Freeman MD, Rosa S, Harshfield D, Smith F, Bennett R, Centeno CJ, Kornel E, Nystrom A, Heffez D, Kohles SS (2010). "A case-control study of cerebellar tonsillar ectopia (Chiari) and head/neck trauma (whiplash)". Brain Injury. 24 (7–8): 988–94. doi:10.3109/02699052.2010.490512. PMID20545453. S2CID9553904.
Freeman MD, Rosa S, Harshfield D, Smith F, Bennett R, Centeno CJ, Kornel E, Nystrom A, Heffez D, Kohles SS (2010). "A case-control study of cerebellar tonsillar ectopia (Chiari) and head/neck trauma (whiplash)". Brain Injury. 24 (7–8): 988–94. doi:10.3109/02699052.2010.490512. PMID20545453. S2CID9553904.