Ключевые слова: black, call, cellphone, cellular, closeup, communication, concept, connection, contact, device, digital, electronic, finger, gadget, hand, health, hold, hospital, interface, internet, message, mobile phone, mobility, modern, monitor, network, online, opd, outpatient department, phone, portable, press, screen, smart phone, social, tablet, technology, telephone, touch, touch screen, wireless,