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Objective and subjective measures of sleep, and daily caloric intake during marijuana abstinence as a function of THC (60 mg/day), lofexidine (2.4 mg/day) and the THC (60 mg) and lofexidine (2.4 mg/day) combination (inpatient days 5–6). Asterisks indicate a significant difference between medication and placebo (* p < 0.05; ** p < 0.01). Error bars represent ± standard error of the mean (SEM).
