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Erkonen, William E., Wilbur L. Smith, Lisa McAllister, Matthew Kory, and Bess Bess Kiethas. Radiology 101: The Basics and Fundamentals of Imaging. Second edition. Philadelphia, Pennsylvania: Lippincott Williams & Wilkins, 2005.

Erkonen, William E., et al. Radiology 101: The Basics and Fundamentals of Imaging. Second edition. Lippincott Williams & Wilkins, 2005.