1. Trends in the consumption of opioids for the treatment of severe pain in Europe, 1990–2016;Bosetti C.;European Journal of Pain, 23,,2018
2. Prevalence of Chronic Pain, Treatments, Perception, and Interference on Life Activities: Brazilian Population-Based Survey
3. Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos (PNAUM): métodos do inquérito domiciliar;Mengue S.S.;Rev Saude Publica,2016