Ключевые слова: ache, aid, attack, breast, breathing, cancer, cardiac, cardiology, cardiovascular, chest, chronic, clinic, clinical, condition, corona, cramp, diagnosis, disease, doctor, emergency, epidemic, examination, flu, health care, healthcare, hold, hospital, ill, illness, infected, infection, lung, mask, medical, medicine, pain, painful, patient, pressure, problem, research, science, sick, sickness, stomach, symptom, test, therapy, treatment, virus,