Prospective Study
Copyright ©The Author(s) 2016.
World J Gastroenterol. Oct 14, 2016; 22(38): 8615-8623
Published online Oct 14, 2016. doi: 10.3748/wjg.v22.i38.8615
Figure 3
Figure 3 Number of cases of achalasia in the different regions according to time.