R. C. C. Barbosa, C. F. M. Botelho, R. S. Alves, and H. J. M. de Souza, “Comparison among Feline’s Body Mass Index, Leptin Hormone Serum Level and Body Condition Score to Diagnose Obesity in Domestic Cats”, Acta Scientiae Vet., vol. 46, no. 1, p. 6, Jan. 2018.