https://www.syu.ac.kr/pharmacy/2010/01/28/%ec%a4%91%ea%b2%ac-%ec%a0%9c%ec%95%bd%ec%82%ac-%ec%9d%98%ec%95%bd%ed%92%88-%ea%b0%9c%eb%b0%9c-%eb%8b%b4%eb%8b%b9-%ea%b2%bd%eb%a0%a5-%eb%b0%8f-%ec%8b%a0%ec%9e%85%ec%82%ac%ec%9b%90-%ec%b1%84%ec%9a%a9/