A novel oral prodrug (CK301) for effusive feline infectious peritonitis: An open-label study evaluating dose optimization and therapeutic efficacy - Zihang Ma; Siying Li; Shenghe Sun; Zhuofan Gao; Xin Li; Jinping Chen; Zhen Wang; Shizhe Liu; Chuangqi Sun; Yongzhong Xiong; Kun Jia; Linghua Hao; et al. (Veterinary Microbiology, 2026)