The study on the filter efficiency and wearing time of medical protective mask

DU Jian, YUE Shu-min, XIE Zhong-yao, MA Yan, JIANG Xiao-ying, MI Feng-ling, GAO Jing-tao, GAO Wei-wei, LI Qi, LI Liang

Chinese Journal of Antituberculosis . 2012, (10): 633 -636 .