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. 2020 Jun 27;20(6):221–226. doi: 10.1016/j.ipej.2020.06.003

Fig. 4.

Fig. 4

.The left critical isthmus was precisely posterior to the oesophageal course. RSPV: right superior pulmonary vein. LIPV: left inferior pulmonary vein. LSPV: left superior pulmonary vein. CS: coronary sinus catheter.