Ключевые слова: background, blue, book, books, bottle, bottles, brown, care, closeup, concept, diagnosis, education, emergency, equipment, examination, glass, health, hospital, information, instrument, learning, letter, letters, literature, medical, medicine, open, page, pages, paper, pill, pills, professional, publication, read, reading, research, retro, science, scientific, stethoscope, study, table, test, tool, wisdom, wood, wooden,