sábado, 28 de diciembre de 2013

What Controls Your Breathing? - NHLBI, NIH

What Controls Your Breathing? - NHLBI, NIH
National Heart Lung and Blood Institute Logo

What Controls Your Breathing?
12/24/2013 03:10 PM EST

Source: National Heart, Lung, and Blood Institute - NIH
Related MedlinePlus Page: Breathing Problems
What Happens When You Breathe?
12/24/2013 03:10 PM EST

Source: National Heart, Lung, and Blood Institute - NIH
Related MedlinePlus Page: Breathing Problems
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