title: Or is it just a little relaxation?
authors.affiliation: Graduate Hospital, Department of Medicine, Philadelphia, Pennsylvania, USA.
authors.forename: Y K
authors.initials: YK
authors.lastname: Govil
authors.forename: P O
authors.initials: PO
authors.lastname: Katz
mesh_terms: D000230:Adenocarcinoma / Q000139:chemically induced*; D004938:Esophageal Neoplasms / Q000139:chemically induced*; D004943:Esophagogastric Junction / Q000187:drug effects*; D006801:Humans; D009126:Muscle Relaxation; D012307:Risk Factors