Professors at S. Korea's 'big five' hospita… stocking 0 6 04.26 20:32 https://youtu.be/yJ7c0uNXDn0 + 0 '빅5' 병원 교수들, 일제히 '일주일에 하루' 휴진 결정 Good evening. Thank you for joining us. I'm Yoon Jung-min. We begin with ...