@misc{indiciae30de77e4ff87, title = {Irritable bowel syndrome: classification and conceptualization.}, author = {Yehuda Ringel and Douglas A Drossman}, year = {2002}, doi = {10.1097/00004836-200207001-00003}, url = {https://pubmed.ncbi.nlm.nih.gov/12184143/}, note = {Source identifier: 12184143} }