Inhibitory effect of smoking on the lower esophageal sphincter.
D000328:Adult; D004943:Esophagogastric Junction / Q000503:physiopathology*; D006356:Heartburn / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D011312:Pressure; D012907:Smoking / Q000150:complications / Q000503:physiopathology*