Table 5. The Changes of H-B Scale and Y-system in Case

Days	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
H-B Scale	4	4	4	4	4	4	4	3	3	3	3	3	3	2	2	2	2	2
Y-system	19	19	19	20	21	22	25	25	25	25	27	27	30	30	30	36	37	37
VAS	3	3	3	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0