Figlie, N. B., J. Dunn, L. C. S. Gomes, J. Turisco, R. Payá, and R. Laranjeira. “Motivation to Change Drinking Behavior: The Differences Between Alcohol Users from an Outpatient Gastroenterology Clinic and a Specialist Alcohol Treatment Service”. São Paulo Medical Journal, vol. 123, no. 5, Sept. 2005, pp. 223-8, https://periodicosapm.emnuvens.com.br/spmj/article/view/2348.