Balbinot, A.D., Araujo, R.B. and Santos, P.L. dos 2015. Variation in heart rate and intensity of craving during exposure to stimulus in crack dependents. Brazilian Journal of Behavioral and Cognitive Therapy. 16, 3 (Jan. 2015), 23–33. DOI:https://doi.org/10.31505/rbtcc.v16i3.710.