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Relative abundance differences in phylum level between healthy controls and gastric cancer patients in 4 sample types. Heatmaps representing the relative abundances of microbiome between the two groups (A) in stool bacteria (ST-Bac) isolated from stool pellet, (B) in stool-derived extracellular vesicle (ST-EV) isolated from stool supernatant, (C) in urine, and (D) in serum.
