Health, 02.09.2019 14:30 rebekah1503
Asthma effects the respiratory system. it also causes the "immune system" to action by activating defense cells. expound on how the defense cells effect the muscles around the airway system. does it causes the muscles to swell or contract?
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Asthma effects the respiratory system. it also causes the "immune system" to action by activating de...
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