TY  - RPRT
TI  - Sigmoidoscopic examinations.
AU  - N W SWINTON
PY  - 1955
DO  - 10.1016/s0039-6109(16)34601-1
UR  - https://pubmed.ncbi.nlm.nih.gov/14386268/
ID  - 14386268
ER  -