S. S. de Azevedo, “Occurrence and risk factors associated with leptospirosis in dogs attended in a veterinary hospital in the semiarid of the Paraíba State, Northeast region of Brazil”, Braz. J. Vet. Res. Anim. Sci., vol. 48, no. 2, pp. 161–166, Apr. 2011, doi: 10.11606/S1413-95962011000200009.