What are the limitations of the study
选项:
A:Some patients are lost to follow-up.
B:We might have missed some patients who were asymptomatic or had mild cases and who were treated at home.
C:Many patients did not undergo sputum bacteriologic or fungal assessment on admission because, in some hospitals, medical resources were not enough.
D:We didn't have enough data about the exposure history and laboratory testing of some patients.
发布时间:2024-06-29 12:36:08