Retrospective Study
Copyright ©The Author(s) 2022.
World J Gastroenterol. Feb 28, 2022; 28(8): 853-867
Published online Feb 28, 2022. doi: 10.3748/wjg.v28.i8.853
Figure 1
Figure 1 Flow diagram of the study enrollment. GERD: Gastroesphageal reflux disease; GI: Gastrointestinal; NERD: Non-erosive reflux disease; PPI: Proton pump inhibitor; LA: Los Angeles.