text: The most potent<unk> <unk> in the development of<unk> 's<unk>  is chronic GERD. Other<unk><unk>  include age (>older than 50 years), sex (male), race (caucasian), hiatal hernia, elevated body mass index and intra-abdominal distribution of body fat.
option_0: Barrett's esophagus risk factors
option_1: Esophageal stricture risk factors
option_2: Dyspepsia risk factors
option_3: Gastroesophageal reflux disease risk factors
option_4: Zenker's diverticulum risk factors
option_5: Peptic ulcer risk factors
option_6: Helicobacter pylori infection risk factors
option_7: Dysphagia risk factors