Massachusetts General Hospital;
Department of Radiology;
Harvard Medical School;
Boston;
MA 02114;
United States;
Myongji Hospital;
Kwandong University;
522 Naegok-dong;
Gangneung-si;
Gangwon-do 220-801;
South Korea;
ContextVision AB;
Link ping 58002;
Sweden;
Noise; reduction; filters; Computed; tomography; radiation; dose; reduction; Abdominal; computed; tomography; image; quality; Non-linear; adaptive; filters;