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BMC gastroenterology (Online).-- (2001) -.-- London ISSN 1471-230X

 
Full Text Free - Free access
URL https://bmcgastroenterol.biomedcentral.com/
Available since    2001
Full Text Free - Free access
URL https://www.ncbi.nlm.nih.gov/pmc/journals/30/
Available since    2001