Keywords
40s, 45-50 years, 50-55 years, 50s, arms folded, asian ethnicity, biology, black hair, chemist, color image, expertise, front view, glasses, healthcare and medicine, hi-tech, hi-technology, indoors, japanese ethnicity, lab coat, laboratory, looking at camera, male, man, mature adult, mature men, one adult only, one person, pen, photography, portrait, research, scientist, small group of objects, technology, two objects, vertical, waist up, 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, u11170516