TY  - RPRT
TI  - Occult blood screening.
AU  - N C Armitage
AU  - J D Hardcastle
PY  - 1985
DO  - 10.1016/0016-5085(85)90609-2
UR  - https://pubmed.ncbi.nlm.nih.gov/3896913/
ID  - 3896913
ER  -