The use of illegal drug is an important public health and social problem in China. By the time of December 2009, there had been more than 1.12 million drug users in our country, and 69.3% was young people under 35 years old. The ultimate outcome of drug abuse is drug dependence.
The exact reason for drug dependence is not clear now. In recent years, researchers have paid more and more attention on the psychosocial factors of drug dependence and relapse. Child abuse is a kind of early life stre...