Hellow guys, Welcome to my website, and you are watching ENG SUB) 과호흡 증후군의 원인과 증상, 응급대처법을 알아보자!! (feat. 봉지호흡법). and this vIdeo is uploaded by 여섯시의 진료실 at 2020-12-11T01:00:05-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.