TY  - RPRT
TI  - Optimal intervals and techniques for screening sigmoidoscopy.
AU  - Amnon Sonnenberg
AU  - David Lieberman
PY  - 2003
DO  - 10.1001/jama.290.16.2122-b
UR  - https://pubmed.ncbi.nlm.nih.gov/14570940/
ID  - 14570940
ER  -