Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The alpha diversity of gastric microbiota reduces from HC through CG, IM, IN to GC. Diversity estimates were obtained from OTU richness and evenness by using (A) observed number OTUs, (B) Shannon index, (C) Chao1 index, and (D) PD whole tree. Statistically significant differences in alpha diversities were analyzed by t-test and annotated as *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001.
