TY  - RPRT
TI  - Lower esophageal ring.
AU  - C Y Hadidian
AU  - L Kiefer
AU  - R F Miller
PY  - 1968
DO  - 10.1378/chest.54.5.465
UR  - https://pubmed.ncbi.nlm.nih.gov/5698593/
ID  - 5698593
ER  -