Ключевые слова: analyzing, arrange, background, bright, concentration, convenient, deafaid, deafness, disease, examination, experienced, experiment, expertise, fortunate, freedom, hand, health, health care, healthcare, hearing, hearing aid, human ear, listening apparatus, medical, medical equipment, medical exam, medicine, model, modern, neat, no face, opportunity, optimism, otolaryngology, responsibility, scrutinize, selective focus, small, technology, wellbeing,