Liu, Jinjin
Ren, Na
Hu, Shanlei
Zheng, Lijun
Ge, Lili
Ma, Shuhuan
Huo, Yuqi http://orcid.org/0000-0001-7543-3132
Article History
Received: 1 July 2020
Accepted: 28 September 2020
First Online: 9 November 2020
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: This article does not contain any experiments with human participants or animals performed by any of the authors. Written informed consent was not required, as fecal samples were collected from a clinical laboratory that performed routine diagnosis and no specific information except age was recorded in this study. The ethical committee of the Sixth People’s Hospital of Zhengzhou approved this study.