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2006
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![eyefloss 2005.12.27 _ _ o0 / ~ / thorax extremity[0] extremity[1] oxygen inhale I try to inhale oxygen _ _ o0 / ~ / carbon dioxide exhale and then I try to exhale carbon dioxide. _ _ o0 / ~ / oxygen carbon dioxide repeat I try to repeat this process approximately every three seconds. _ _ o0 / ~ / thorax extremity[0] extremity[1] This is what happens when I breathe.](eyefloss-20051227.png)
