[Retracted] Experimental Study on the Central Mechanism of Penehyclidine Hydrochloride against Relapse Behavior in Morphine-Dependent Rats

Table 4

After administration Ach level in all groups.

	4 h	7 h	13 h	25 h	37 h
1	0.316	0.286	0.311	0.295	0.291
2	0.472	0.506	0.318	0.320	0.311
3	0.494	0.492	0.604	0.593	0.645
4	0.507	0.489	0.723	0.794	0.812