TY  - RPRT
TI  - Upper-esophageal sphincter dysfunction. Pathogenesis and treatment.
AU  - A L Hurwitz
AU  - A Duranceau
PY  - 1978
DO  - 10.1007/bf01072329
UR  - https://pubmed.ncbi.nlm.nih.gov/665617/
ID  - 665617
ER  -