Quzhuo tongbi formula for reducing gout flare related to uric acid lowering treatment: Study protocol for a multiple-center, randomized, double-blind, placebo, parallel-controlled clinical trial - Hejing Pan; Xuanlin Li; Shan Wu; Donghai Zhou; Haojie Guan; Haoyu Wu; Qiao Wang; Yujun Tang; Xuanming Hu; Meijiao Wang; Mingqian Zhou; Runyue Huang; et al. (PLoS ONE, 2025)