@misc{indiciaec0ef583cdc2c, title = {Optimal intervals and techniques for screening sigmoidoscopy.}, author = {Amnon Sonnenberg and David Lieberman}, year = {2003}, doi = {10.1001/jama.290.16.2122-b}, url = {https://pubmed.ncbi.nlm.nih.gov/14570940/}, note = {Source identifier: 14570940} }