Interobserver Agreement of FOLR1 Immunohistochemistry in Gynecologic Carcinomas: A Multi-Institutional Study - Na Niu; Sara Salehiazar; Minhua Wang; Tong Sun; Rita Abi-Raad; Stephanie McGregor; Padmini Manrai; Amy Joehlin; Pei Hui; Natalia Buza (Archives of Pathology & Laboratory Medicine, 2026)