TY  - RPRT
TI  - Paper colic.
AU  - W A McCallion
AU  - J F Douglas
PY  - 1993
DO  - 10.1111/j.1464-410x.1993.tb16195.x
UR  - https://pubmed.ncbi.nlm.nih.gov/8261317/
ID  - 8261317
ER  -