https://www.syu.ac.kr/pharmacy/2011/01/04/%ec%9e%90%ec%8b%a0%ea%b0%90-%ec%9e%a0%ec%9e%ac%eb%a0%a5-%eb%a6%ac%eb%8d%94%ec%8b%ad%ea%b3%84%eb%b0%9c-%eb%b0%8f-%ec%b7%a8%ec%97%85%eb%8a%a5%eb%a0%a5%ed%96%a5%ec%83%81-%ec%9e%90%ea%b2%a9%ec%a6%9d/