Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
의사는 심전도를 통해 환자의 심장 상태를 확인했습니다.uisaneun simjeondo-reul tonghae hwanja-ui simjang sangtae-reul hwaginhaessseubnida.The doctor checked the patient's heart condition through the electrocardiogram.