TY  - RPRT
TI  - Double contrast upper gastrointestinal studies.
AU  - J H Hunt
AU  - J F Anderson
PY  - 1976
DO  - 10.1016/s0009-9260(76)80025-6
UR  - https://pubmed.ncbi.nlm.nih.gov/1261204/
ID  - 1261204
ER  -