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well typically it depends what diease there looking for but common tests they preform are cat scans blood test and a oxygen test.
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Answer:
Emerging Issues in Global Health. Globally, the rate of deaths from noncommunicable causes, such as heart disease, stroke, and injuries, is growing. At the same time, the number of deaths from infectious diseases, such as malaria, tuberculosis, and vaccine-preventable diseases, is decreasing.
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