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Standardized regression weight in the questionnaire confirmatory factor analysis model. ph1: chest distress, ph2: sleepiness, ph3: physical heaviness, ph4: obesity, ph5: sticky mouth, ph6: abdominal fullness, ph7: anorexia, ph8: greasy fur, and ph9: slippery pulse; st1: chest pain, st2: cyanotic lips, st3: dim complexion, st4: dark purple tongue, st5: petechiae or ecchymosis on the tongue, and st6: sublingual vein cyanosis.
