Gunnell, D., Knipe, D., Chang, S.-S., Pearson, M., Konradsen, F., Jin Lee, W., & Eddleston, M. (2017). Prevention of suicide with regulations aimed at restricting access to highly hazardous pesticides: a systematic review of the international evidence. https://doi.org/10.1016/S2214-109X(17)30299-1