TY  - RPRT
TI  - Bronchospasm preceded by periumbilical pain.
AU  - W R Cherry
AU  - D Roth
PY  - 1988
DO  - 10.1080/21548331.1988.11703562
UR  - https://pubmed.ncbi.nlm.nih.gov/3139685/
ID  - 3139685
ER  -