SALEM, N.H.--(BUSINESS WIRE)--Gamma Medica, a leader in molecular breast imaging technology (MBI), announced today that Dr. Nathalie Johnson, M.D., FACS, of the Legacy Cancer Institute and the Legacy Breast Health Centers in Portland, Oregon has agreed to join the organizations’ clinical advisory board, currently comprised of distinguished clinicians and thought leaders with expertise in women’s health technologies and diagnostic imaging. Dr. Johnson and the board will provide strategic and clinical advice as Gamma Medica continues commercialization and enhancements of its LumaGEM® Molecular Breast Imaging system.