40-45, 40-50, 40's, 40s, 45-50, 50-55, 50-60, 55-60, acknowledging, adult, calling, cellphone, cellular, cellular phone, chatting, clip board, clip-board, color, colour, communicating, connecting, connexion, control, conversation, conversing, daylight, daytime, dialog, dialogue, discussing, doc, equipment, expert, fellow, fifties, fifty, forties, forty, general practitioner, gentleman, gray, grey, grey hair, guy, hair, hall, hallway, hardy, health-care, healthcare professional, healthcare worker, healthy, hearing, human, human being, indoor, inside, joining, listener, male, md, medic, medical care, medical equipment, medical science, mid life, middle age, middle aged, middle-age, middle-aged, mobile, mobile phone, negative space, one, passageway, person, phone, physician, power, responding, responsible, smile, speaking, talker, telephone, telephoning, toiling, using, vitality, waist-up, well-being, western european, white coat, white space, wireless, work,
