Ricardo Leal Cunha, Márcia Maria Portela de Santana, & Celinalva da Silva Lima Oliveira. (2017). Preliminary Detection of New Psychoactive Substances (NPS) in Synthetic Drugs Seizures in the Northeast Brazil in a Period of Two Years (2014–2016). Brazilian Journal of Forensic Sciences, Medical Law and Bioethics, 6(2), 247–257. https://doi.org/10.17063/bjfs6(2)y2017247