@article{ref1,
title="Drugs for irritable bowel syndrome",
journal="Medical letter on drugs and therapeutics",
year="2020",
author="",
volume="62",
number="1594",
pages="41-48",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-732X",
doi="",
url="http://dx.doi.org/"
}