Brief Article
Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Jul 14, 2013; 19(26): 4177-4184
Published online Jul 14, 2013. doi: 10.3748/wjg.v19.i26.4177
Figure 1
Figure 1 Consort diagram. ASA: American Society of Anesthesiologists.