Fifth-time redo mitral valve replacement via right thoracotomy under systemic hyperkalemia cardiopulmonary bypass without aortic cross-clampTomohisa Takeichi, Yoshihisa Morimoto, Akitoshi Yamada and Takanori TanakaJ Extra Corpor Technol, 55 4 (2023) 201-205DOI: https://doi.org/10.1051/ject/2023040