70510487 - Medicine and medical equipment painted white and laid out on a clipboard70509702 - Clipboard, various medical scissors and instruments painted white and arranged neatly70511565 - Detail of a man holding a surgical instrument70511518 - Midsection of a man holding a surgical instrument71191563 - Cropped image of scientist pouring liquid into vial at laboratory71191562 - Cropped image of scientist holding microscope slide over box at laboratory
