Social Media Survey and Web Posting Assessment of the COVID-19 Response in China: Health Worker Attitudes Toward Preparedness and Personal Protective Equipment Shortages. - Huang, Dayong; Shu, Wen; Li, Menglong; Ma, Juntao; Li, Ziang; Gong, JiaJian; Khattab, Nourhan M; Vermund, Sten H; Hu, Yifei (Open Forum Infectious Diseases, 2020)