1. Graduate Program in Medicine: Medical SciencesUniversidade Federal do Rio Grande do Sul90035‐003Porto AlegreBrazil
2. Pain Pharmacology and Animal Models of Neuromodulation LaboratoryDepartment of PharmacologyInstitute of Basic Health SciencesUniversidade Federal do Rio Grande do Sul90050‐170Porto AlegreBrazil
3. Animal Experimentation UnitHospital de Clínicas de Porto Alegre Graduate Research Group90035‐003Porto AlegreBrazil
4. Graduate Program in Health and Human DevelopmentCentro Universitário Unilasalle92010‐000CanoasBrazil
5. Graduate Program in Biological Sciences: PhysiologyUniversidade Federal do Rio Grande do Sul90035‐003Porto AlegreBrazil
6. Department of Morphological SciencesUniversidade Federal de Santa Catarina88040‐900FlorianópolisBrazil