Table 3.

Clinical data of included studies (expanded indication vs beyond expanded indication)

Ref.	Location, language	Complete resection				En bloc resection		Recurrence
		EI effective	EI total	Beyond EI effective	Beyond EI total	EI	Beyond EI	EI	Beyond EI
Kang et al[24], 2010	South Korea (English)	17	18	16	42	18/18	42/42	0/18	0/42
Lee et al[25], 2010	South Korea (English)	11	17	11	30
Yamamoto et al[26] 2010	Japan (English)	46	47	6	11	47/47	10/11
Kamada et al[29], 2012	Japan (English)	32	34	7	12			0/34	1/12
Kim et al[33], 2013	South Korea, multicenter (6) (English)	223	29	31	45			0/29	4/45
Chung et al[35], 2014	South Korea (Korean)	50	58	8	18	51/58	13/18
Oka et al[36], 2014	Japan (English)	57	60	29	37