@misc{indiciaefa34b6fadf09, title = {Flexing up for screening by flexible sigmoidoscopy.}, author = {F Macrae}, year = {1999}, doi = {10.1046/j.1440-1622.1999.01492.x}, url = {https://pubmed.ncbi.nlm.nih.gov/9932910/}, note = {Source identifier: 9932910} }