The Evolution of Stomach Acidity and Its Relevance to the Human Microbiome Beasley, DeAnna E. ; Koltz, Amanda M. ; Lambert, Joanna E. ; Fierer, Noah ; Dunn, Rob R. Abstract Not Available Publication: PLoS ONE Pub Date: July 2015 DOI: 10.1371/journal.pone.0134116 Bibcode: 2015PLoSO..1034116B