Corrêa RR, Zoppa AL do V, Silva LCLC da, et al. Retrospective study of enterolithiasis and foreign bodies found in the large intestine of horses (january 1993 to january 2003). Braz. J. Vet. Res. Anim. Sci. 2006;43(2):242-249. doi:10.11606/issn.1678-4456.bjvras.2006.26505