| http://www.w3.org/ns/prov#value | - clinical symptoms, such as difficulty breathing, chest pain or syncope, or hemoptysis occurs, the face appeared cyanotic They can appear alone, it can be shown together, seriously, that there will be shock, fainting or even sudden death.In contrast, white-collar workers and other mental, long-term business or bedridden, pregnant women and the elderly because of less active for a long time without
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