Huiyang Chen*, Yueyue Tong, Yuke Cai. Research on resource allocation of drug safety supervision in Ningxia based on PSO-GM(1,1) and GRA. ISTAER. Published online January 16, 2025:1-14. Accessed February 25, 2026. https://www.istaer.online/index.php/Home/article/view/No.2311