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2, 30-35, 30-40, 30's, 30s, 35-40, 40-45, 40-50, 40's, 40s, 45-50, 50-55, 50-60, 55-60, adult, arranging, associate, brown hair, collaborating, colleague, color, colour, communicating, computer, conference, connecting, connexion, doc, elevated view, expert, fellow, female, fifties, fifty, forties, forty, furnishing, furniture, gal, gathering, general practitioner, gentleman, guy, health, health-care, healthcare professional, healthcare worker, high angle, human, human being, indoor, inside, joining, lab, lady, male, md, medic, medical care, medical science, mid life, middle age, middle aged, middle-age, middle-aged, negative space, organizing, pc, person, personal computer, physician, portable computer, r&d, research and development, responsible, seated, smile, team, thirties, thirty, toiling, two, typist, using, waist-up, western european, white space, wireless, women, work, world wide web,