Proteomic Analysis Identifies Association of Periostin, a Matricellular Protein, with High Tumor Stroma and Immune Exclusion in Triple-Negative Breast Cancer. - Jeon, Yeonjin; Lee, GunHee; Jeong, Byung-Kwan; Kim, Yoon Young; Kim, JiSun; Jeong, Jae Ho; Kim, Kyunggon; Lee, Hee Jin (Cancer Research & Treatment, 2026)