PT - JOURNAL ARTICLE AU - Y.I. Kim AU - K.J. Ahn AU - Y.A. Chung AU - B.S. Kim TI - A New Reference Line for the Brain CT: The Tuberculum Sellae-Occipital Protuberance Line is Parallel to the Anterior/Posterior Commissure Line AID - 10.3174/ajnr.A1676 DP - 2009 Sep 17 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2009/09/17/ajnr.A1676.short 4100 - http://www.ajnr.org/content/early/2009/09/17/ajnr.A1676.full