TY  - RPRT
TI  - [THE SO-CALLED LOWER ESOPHAGEAL RING].
AU  - E HAFTER
PY  - 1964
DO  - 10.1055/s-0028-1113286
UR  - https://pubmed.ncbi.nlm.nih.gov/14218247/
ID  - 14218247
ER  -