CD4+/CD8+ Ratio and Growth Differentiation Factor 8 Levels in Peripheral Blood of Large Canine Males Are Useful Parameters to Build an Age Prediction Model - Han-Jun Lee; Seok-Jin Hong; Seung-Soo Kim; Young-Yon Kwon; Bong-Hwan Choi; Kyung-Mi Choi; Seo-Hyeong Sheen; Myung-Jin Lee; Sun-Young Hwang; Kyoungwan Park; Younghun Joo; Hwayoung Song; et al. (The World Journal of Men's Health, 2022)