abdomen
acid
acid reflux
adult
anatomy
background
body
breathing
burning
care
chest
chronic
condition
demonstrating
diagnosis
digestion
digestive
disease
esophageal
esophagus
gastric
gastritis
gastroesophageal
gerd
health
healthy
heartburn
huanalysis
ill
illness
indigestion
medical
medicine
pain
problem
reflux
showing
sick
sickness
sphincter
stomach
stress
suffer
symptoms
system
unhappy
unwell
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