Effects of Traditional Chinese Herbal Extracts on Tear Staining, Iron Status, Immune Function, and Antioxidant Capacity in Dogs. - Wang, Erdan; Wu, Peng; Xu, Jiu; Hong, Xinrong; Zhao, Nian; Sun, Tao; Zhang, Tianfeng; Xu, Zhihao; Yang, Caimei (Animals (2076-2615), 2026)