First Lt. Jesse Gronsky, 28th Medical Operations Squadron physician assistant and Biomedical Science Corps member, uses an otoscope to perform an ear examination on Airman 1st Class Alexandra Hill, 28th Medical Support Squadron unit deployment manager, at Ellsworth Air Force Base, S.D. The BSC is a diverse group of medical providers who celebrated its 50th anniversary during this year’s BSC Appreciation Week Jan. 26 to 30. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle/ Released)