TY  - RPRT
TI  - A gastrointestinal problem.
AU  - B Wilkinson
AU  - J A Williams
PY  - 1972
DO  - 10.1136/bmj.1.5803.797
UR  - https://pubmed.ncbi.nlm.nih.gov/5014257/
ID  - 5014257
ER  -