sjk.tj.gov.cn/art/2020/2/21/art_70_71264.html  Feb. 20, 2020
4  Hebei Provincial COVID-19 TCM Therapeutic regime (Trial Version IV)  https://mp.weixin.qq.com/s/9QTqGDw6vkQyWX-VrjulqQ  Feb. 13, 2020
5  Gans