Figure 1.
The total annual number of ER, ESD, and EMR procedures and operating institutions. (a) The numbers of ER (line) and the institutions performing the procedures (bar) steadily increased during the study period. (b) The numbers of ESD (line) and the institutions conducting the procedures (bar) steadily increased during the study period. (c) The numbers of EMR (line) did not show meaningful change, while the institutions performing the procedures (bar) increased during the study period. ER endoscopic resection, ESD endoscopic submucosal dissection, EMR endoscopic mucosal resection.
