Table 1.

Example of question base.

Question no.	Question	Answer no.	Answer	Next
1	Fear of cold?	A1	Fear of cold	2
		A2	No fear of cold	2
2	Fever?	A3	Fever	3
		A4	No fever	3
3	Does it last long or short?	A5	Long duration	Yang deficiency
		A6	Short duration	Pattern of internal and external excess-cold