Association of postoperative atrial fibrillation with higher dosing ratios of protamine-to-heparinYasuharu Yamada, Junzo Iemura, Atushi Kambara, Noboru Tateishi, Yuji Kozaki, Masako Yamada, Junko Maruyama and Eiichi AzumaJ Extra Corpor Technol, 55 1 (2023) 23-29DOI: https://doi.org/10.1051/ject/2023003