%0 Journal Article %T Negative results in nucleic acid test of COVID-19 patients: assessment from the perspective of clinical laboratories %A Guo, Wenjia %A Zhou, Qi %A Xu, Jiancheng %J Annals of Palliative Medicine %D 2020 %B 2020 %9 %! Negative results in nucleic acid test of COVID-19 patients: assessment from the perspective of clinical laboratories %K %X %U https://apm.amegroups.org/article/view/51706 %V 9 %N 6 %P 4246-4251 %@ 2224-5839