154068document54879Recent Acquisition of Helicobacter pylori by Baka Pygmies.PDFapplication/pdfe109c094dfb95ee88289d375c5799b58MD511264942016-05-09 14:30:51https://pure.iiasa.ac.at/id/eprint/10319/1/Recent%20Acquisition%20of%20Helicobacter%20pylori%20by%20Baka%20Pygmies.PDF