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
색전물은 혈관을 막아 혈류를 방해할 수 있습니다.saekjeonmureun hyeolgwan-eul mak-a hyeollyureul banghaehal su issseubnida.An embolus can block a blood vessel and disrupt blood flow.