Erratum: A retrospective study of theophylline-based therapy with tracheal collapse in small-breed dogs: 47 cases (2013–2017)
So-Young Jeung1, Sang-June Sohn1, Ju-Hyun An1, Hyung-Kyu Chae1, Qiang Li1, Mincheol Choi2, Junghee Yoon2, Woo-Jin Song1, Hwa-Young Youn1, *