Keywords
beaker, caucasian ethnicity, color, colour, culture, development, elderly man, folded hands, front view, green, grey hair, head and shoulder, horizontal, indoor, laboratory, lifestyle, light, looking at camera, male, man, one person, portrait, r & d, r & d matters, r&d matters, research, researcher, science, standing, surgeon, surgical cap, surgical gloves, surgical scrubs, technology, wire, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u14964223