title: New model amplipul's-4 low-frequency therapy apparatus.
mesh_terms: D000669:Amplifiers, Electronic; D000787:Angina Pectoris / Q000628:therapy; D001249:Asthma / Q000628:therapy; D004381:Duodenal Ulcer / Q000628:therapy; D006801:Humans; D006973:Hypertension / Q000628:therapy; D007592:Joint Diseases / Q000628:therapy; D007674:Kidney Diseases / Q000628:therapy; D013276:Stomach Ulcer / Q000628:therapy; D014173:Transistors, Electronic; D014586:USSR; D014464:Ultrasonic Therapy / Q000295:instrumentation* / Q000592:standards