close up to guinea pig is standing in the cage

air anatomy aorta atelectasis background backlit body bone brown cage care cavity chest children close concept congenital congestion coronary defect diagnosis disease doctor effusion exam examination failure film guinea health heart hospital human illness infect infectious infiltration investigation khonkaen light lung medical medicine name nong patient pig pleural pneumopericardium present pulmonary radiation radiology ray reflection respiration respiratory right show sick standing stenosis sunset system technology temple thai thailand thorax trees waeng water white