Ключевые слова: bad, blood, cardiac, care, clinic, clinical, coronavirus, cough, covid, covid19, finger, hand, head, health, healthcare, heart, home, hospital, ill, illness, instrument, level, low, lung, machine, measure, measurement, medical, medicine, monitor, monitoring, oximeter, oxygen, pain, patient, people, pulse, saturation, sensor, service, sick, sufferer, symptom, symptomatic, technology, test, therapy, tool, treatment, tussis,