[Which sampling method for the upper respiratory tract specimen should be taken to diagnose patient with COVID-19?].
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2020 Jun 7;55(6):583-588. doi: 10.3760/cma.j.cn115330-20200223-00116.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2020.
PMID: 32166939
Chinese.