Ключевые слова: adult, alone, biopsy, caucasian, checkup, clinic, clinical, clinician, close up, concept, device, diagnostic, diagnostician, disposable, doctor, endoscope, endoscopic, endoscopist, endoscopy, equipment, examination, forceps, gastric, gastroenterologist, gastroscopy, get ready, glove, hand, health, healthcare, healthcare professional, healthcare worker, hold, indoors, instrument, male, man, medic, medical, medical practice, medical service, medicine, modern technology, one, person, physician, probe, procedure, specialist, tissue sampling,