燃やす
abdomen
acid
allowing
anatomy
body
closed
concept
condition
diagram
diaphragm
digestion
digestive
disease
disorder
esophageal
esophagus
gastric
gastroesophageal
gerd
health
heartburn
human
illustration
indigestion
infographic
mechanism
medical
medicine
open
organ
pain
problem
reflux
sphincter
stomach
symptoms
system