Inhalation of oxygen (O2) has been a part of the initial management of people suffering from a heart attack. But now doubt has been raised about its efficacy and to know whether it does more harm than good.
Read more here: http://www.medindia.net/news/healthinfocus/Does-Oxygen-Actually-Help-Patients-Who-Suffer-a-Heart-Attack-73464-1.htm
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