Wentz, I., Sobestiansky, J., Silveira, P. R. S. da, Munari, J. L. P., & Freitas, A. R. de. (1991). The effect of formalin solution in footbath associated with floor abrasiveness reduction on clinical aspects of lameness in sows. Brazilian Journal of Veterinary Research and Animal Science, 28(2), 231-234. https://doi.org/10.11606/issn.1678-4456.bjvras.1991.51942