EXPRESS: Colonization of Helicobacter Species and Associated Gastritis in Cats with Gastrointestinal disease: a Cross-Sectional Study on 154 Cases - Teija Kaarina Immonen; Jenni ME Pettersson; Hanna Vauhkonen; Sara Palen; Ilya Weinstein; Tarja Sironen; Ravi Kant; Antti Kalle Kalervo Sukura; Niina Airas (Journal of Feline Medicine and Surgery, 2026)