Charles Downs, Ph.D., ACNP-BC, FAAN (IMAGE) University of Arizona Health Sciences Caption This is Charles Downs, PhD, ACNP-BC, FAAN. Credit UA College of Nursing Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.