Sutthigran, S., A. Klaengkaew, C. Thanaboonnipat, S. Ponglowhapan, and N. Choisunirachon. “Radiographic evaluation of kidney size in cats: Effects of sex and gonadal status”. The Thai Journal of Veterinary Medicine, vol. 56, no. 3, Aug. 2026, pp. 1-6, https://he01.tci-thaijo.org/index.php/tjvm/article/view/291171.