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
서맥은 심박수가 비정상적으로 느린 상태입니다.Seomaek-eun simbaksu-ga bijeong-sangjeogeuro neulin sangtae-imnida.Bradycardia is a condition where the heart rate is abnormally slow.