Thupi la munthu nthawi zambiri limakhala ndi mpweya wochepa chifukwa cha vuto la kupuma monga mphumu, COPD, matenda a m'mapapo, pamene akuchitidwa opaleshoni ndi mavuto ena ochepa.Kwa anthu oterowo, madokotala nthawi zambiri amati agwiritse ntchito mpweya wowonjezera.M'mbuyomu, pomwe ukadaulo sunapite patsogolo, zida za oxygen zinali ...
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