It is essential to use a mask to prevent coronary heart disease

Hint: To prevent the spread of coronavirus, it is necessary for all people to wear a mask during coronary heart disease in the community, especially indoors such as buses, subways, shops, as well as places where people other than family members are present. The use of a mask is more important for the person carrying the disease, but since people with coronary heart disease may be asymptomatic, using a mask is essential for everyone.

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