title: THE SIGNIFICANCE OF PHOTOMULTIPLIER FATIGUE IN SOME MEDICAL ISOTOPE TECHNIQUES.
mesh_terms: D004864:Equipment and Supplies; D011868:Radioisotopes; D011871:Radiology; D011874:Radiometry; D013672:Technology; D013679:Technology, Radiologic
chemical_list: D011868:Radioisotopes
keywords: EQUIPMENT AND SUPPLIES; RADIOISOTOPES; RADIOMETRY; TECHNOLOGY, RADIOLOGIC