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Comparisons of the clinical characteristics between clinical cases and other patients
Values are represented as number (% or range).
*Confirmed (n=5) and probable (n=504) cases defined by the US Centers for Disease Control and Prevention's criteria. †Student's t-tests. ‡Fisher's exact test. §Mann-Whitney U-tests.
BA: bronchial asthma; COPD: chronic obstructive pulmonary disease.
