20-25, 20-30, 20's, 20s, 25-30, 3, 30-35, 30-40, 30's, 30s, 35-40, adult, associate, bed, cheerful, clinic, close-up, closeup, colleague, color, colour, communicating, computer, confidence, connecting, connexion, daylight, daytime, delighted, doc, e-book, e-reader, electronic book, electronic reader, enjoyment, equipment, expert, fellow, female, gal, general practitioner, gentleman, glad, gratifying, guy, happy, head & shoulders, health, health-care, healthcare professional, healthcare worker, human, human being, ill, indoor, inside, invalid, joining, jolly, joy, lady, lay, laying down, lighthearted, lying, lying down, male, md, medic, medical care, medical equipment, medical science, merry, negative space, operating, person, physician, pleasing, pleasure, portraiture, positive, proud, responsible, satisfaction, self-assured, sick, smile, tablet, tablet computer, thirties, thirty, three, toiling, twenties, twenty, western european, white space, wireless, women, work, world wide web,