Close-up shooting: a bearded man brunette in a gray T-shirt starts a practical lesson showing first aid together with a professional doctor a woman in a white uniform with a mannequin in front of the public against the background of brick walls and large windows

close-up bearded man brunette gray t-shirt starts practical lesson showing first aid professional doctor woman white uniform mannequin public background brick walls large windows healthcare demonstration education clinical skills expertise healthcare professional instructor simulation hands-on practice emergency procedure healthcare industry clinic hands health medical equipment learning medical field instructional healthcare education