Assertion: coronary sinus | /r/CapableOf | drain into pulmonary venous atrium
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Source sentences:
text: The coronary sinus drains into the systemic venous atrium (RA) in patients with classic tricuspid atresia after direct atriopulmonary anastomosis with closure of atrial septal defect, but the coronary sinus drains into the pulmonary venous atrium when the lateral tunnel technique with cavopulmonary anastomosis is used.