Ranjbar niaki, Navid, Abdollahpour, Gholamreza, zahraei salehi, Taghi, bahonar, alireza, khaki, Pejvak. “Serological study of leptospirosis in slaughtered cows of Guilan province during 2023.” Veterinary Clinical Pathology The Quarterly Scientific Journal, vol. 17, no. 68, 2024, pp. -. 10.71499/jvcp.2024.3101439