World What Can and Can’t Be Learned From a Doctor in China Who Pioneered Masks May 19, 2021May 20, 2021Wudan YanComments Off on What Can and Can’t Be Learned From a Doctor in China Who Pioneered Masks Dr. Wu Lien-Teh helped change the course of a plague epidemic in the early 20th century and promoted the use of masks as a public health tool.
