_:n119047c5feae4753a525ddeab8ced464xb13
<http://schema.org/url>
<https://www.springernature.com/app-sn/public/images/logo-springernature.png>
<https://bmcgastroenterol.biomedcentral.com/articles/10.1186/s12876-020-01445-2/figures/1>