TY  - RPRT
TI  - A new binocular attachment for teaching sigmoidoscopy.
AU  - S D MANHEIM
AU  - R M ALEXANDER
PY  - 1953
DO  - 10.1016/0002-9610(54)90562-0
UR  - https://pubmed.ncbi.nlm.nih.gov/13114575/
ID  - 13114575
ER  -