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. Author manuscript; available in PMC: 2016 Sep 7.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2011 Jun 12;82(2):e119–e127. doi: 10.1016/j.ijrobp.2011.04.058

Fig. 1.

Fig. 1

Axial CT slice of a head-and-neck cancer patient. Circle overlying pharyngeal constrictor muscle indicates place of measurement for each CT perfusion imaging parameter.