cal oncology at the University of California, San Diego (UCSD), and the Naval Regional Medical Center, San Diego. He served as chief of the International Cancer Research Data Bank of the National Cancer Institute, National Institutes of Health, and was director of the Lister Hill National Center for Biomedical Communications, which is a computer research and development division of the National Library of Medicine. He also served as director of Biomedical Informatics at the UCSD School of Medicine, director of the UCSD Human Research Protections Program, and professor of medicine. Dr. Masys is an elected member of the Institute of Medicine (IOM). He is a diplomate of the American Board of Internal Medicine in medicine, hematology, and medical oncology. He is a fellow of the American College of Physicians and fellow and past president of the American College of Medical Informatics. Dr. Masys served as a member of the IOM Committee on Aerospace Medicine and Medicine of Extreme Environments and chaired the 2008 IOM review of NASA’s Human Research Program evidence books.

Susan A. Bloomfield, Ph.D., earned her B.S. in biology at Oberlin College (Ohio) and her M.A. in physical education (exercise physiology) at the University of Iowa. After completing a Ph.D. (exercise physiology) at Ohio State University, Dr. Bloomfield joined the faculty in the Department of Health & Kinesiology at Texas A&M University in 1993, where she currently holds the rank of professor and is director of the Bone Biology Laboratory. In addition, she serves as assistant provost in the Texas A&M Office of Graduate and Professional Studies. Her research interests focus on the integrative physiology of bone, with specific reference to adaptations to disuse, microgravity, and caloric deficiency and how the sympathetic nervous system, altered blood flow, and endocrine factors modify those adaptations. More recent work has focused on the independent and combined effects of partial weight bearing and simulated space radiation on the integrity of bone and muscle, involving several experiments at Brookhaven National Laboratory. Collaborations with muscle biologists have enabled definition of concurrent changes in muscle-bone pairs with disuse and/or radiation exposure. Her work has been funded by the National Space Biomedical Research Institute (NSBRI), the Department of Defense, and, currently, NASA’s Space Biology Program. From 2000 to 2012, Dr. Bloomfield served as the associate lead for the Bone Loss (later, Musculoskeletal Alterations) Team within the NSBRI, and she has served on numerous NASA and European Space Agency review panels during the past 14 years. She is a member



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