Alexandre Annes Henriques, Jairo A Dussán-Sarria, Leonardo M Botelho, and Wolnei Caumo.
Psychiatry and Pain Program; Laboratory of Pain and Neuromodulation; Pain and Palliative Care Service; Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Post-Graduate Program in Medical Sciences,... more School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. Electronic address: zeaah1918@gmail.com. less