Ключевые слова: anatomy, background, bronchoscopy, business, care, check, choice, colon, colonoscopy, concept, correct, desk, digestive, do, doctor, endoscope, endoscopy, gastroscopy, goal, health, hospital, illness, intestine, life, medical, medicine, modern, no, office, ok, opportunity, organ, positive, question, red, right, science, sigmoidoscopy, sign, space, stomach, surgery, system, table, top, vote, want, work, yes, you,