The Expanded Textbook and Instructional Materials Program (PALTEX) seeks to expand its presence in the region of the Americas, and is being presented Nov. 14 in Puerto Rico to students and faculty of Health Sciences schools and colleges, professional associations, Health Department officials and health workers.

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The use of X-rays and other physical waves such as ultrasound can resolve between 70% and 80% of diagnostic problems, but nearly two-thirds of the world’s population has no access to diagnostic imaging. On World Radiography Day, which takes place on 8 November, the Pan American Health...