Unresolving fever, headache, cough, and negative covid-19 PCR result

Xie, NN; Zhou, YF

Zhou, YF (通讯作者),Cent South Univ, Xiangya Hosp, Dept Geriatr, Changsha 410008, Hunan, Peoples R China.;Zhou, YF (通讯作者),Natl Clin Res Ctr Geriatr Disorders, Changsha 410078, Hunan, Peoples R China.

BMJ-BRITISH MEDICAL JOURNAL, 2022; 377 ():