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. Author manuscript; available in PMC: 2015 May 27.
Published in final edited form as: J Neuroimmune Pharmacol. 2015 Jan 9;10(1):102–110. doi: 10.1007/s11481-014-9577-6

Fig. 1.

Fig. 1

Enrollment and randomization of the study subjects. Subjects were enrolled through Wuhan CDC and Zhongnan Hospital, Wuhan University School of Medicine, China. A total of 463 subjects were initially screened for eligibility by a questionnaire survey. A total of 143 subjects were eligible and randomized into 4 groups: 50 control subjects, 50 HCV-infected patients with no heroin use, 20 heroin abusers with no HCV, 23 heroin abusers with HCV infection. 20 subjects were randomly selected from each group for analysis