TY  - GEN
AU  - INGELFINGER,F J
AU  - KRAMER,P
TI  - Dysphagia produced by a contractile ring in the lower esophagus
SN  - 0016-5085
PY  - 2003///0501
KW  - Deglutition
KW  - Deglutition Disorders
KW  - etiology
KW  - Esophagus
KW  - abnormalities
KW  - Humans
N1  - Publication Type: Journal Article
ER  -