@misc{indiciae3325d5883d4e, title = {Primary constipation: an underlying mechanism.}, author = {B A Sikirov}, year = {1989}, doi = {10.1016/0306-9877(89)90016-9}, url = {https://pubmed.ncbi.nlm.nih.gov/2927355/}, note = {Source identifier: 2927355} }