Determination of serum cortisol levels as a stress marker in hospitalized dogs. - TÜFEKÇİ, Emre; EKİNCİ, Gencay; KARACA BEKDİK, İlknur; ONMAZ, Ali Cesur; ASLAN, Öznur; GÜNEŞ, Vehbi; KELEŞ, İhsan; ÇİTİL, Mehmet (Turkish Journal of Veterinary & Animal Sciences, 2025)