Ключевые слова: 2021, background, blue, calendar, cardiogram, cardiology, care, celebration, changes, christmas, clinic, clinical, concept, cure, design, diagnosis, disease, doctor, donate, equipment, eve, examination, future, happy, health, health care, healthy, heart, holiday, hospital, insurance, law, medical, medication, medicine, new, new year, number, numeral, nurse, physician, plan, stethoscope, symbol, top, treatment, trend, winter, xmas, year,