?:authorAffiliation
|
-
[\'Epidemiology Working Group for COVID-19, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.\', \'Baodi District Center for Disease Control and Prevention, Tianjin 301800, China.\', \'Experimental Detection Group for COVID-19, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.\']
|