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| Description: This child who has asthma is having a pulmonary function test. The blue clip on his nose ensures that air only flows in and out of his mouth so that the volume of air in his lungs can be accurately measured.
Picture Stats: Views: 1115 Filesize: 158.65kB Height: 1417 Width: 2125 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=13249 |