TABLE 1.

Search strategy.

No.	Query
#1	Gastr*[Title/Abstract] OR Stomach[Title/Abstract]
#2	Cancer[Title/Abstract] OR Tumour OR Neoplas*[Title/Abstract] OR Carcinoma[Title/Abstract] OR Adenocarcinoma[Title/Abstract]
#3	Endoscopic mucosal resection[Title/Abstract] OR EMR[Title/Abstract] OR Endoscopic resection[Title/Abstract] OR EPMR[Title/Abstract] OR Endoscopic piecemeal mucosal resection[Title/Abstract] OR MBM[Title/Abstract] OR EMRL[Title/Abstract]
#4	Endoscopic submucosal dissection[Title/Abstract] OR ESD[Title/Abstract]
#5	Complication*[All Fields] OR Incision*[All Fields] OR Infection[All Fields] OR Dehiscence[All Fields] OR Haemorrhage[All Fields] OR Bleed*[All Fields] OR Haematoma[All Fields] OR Wound[All Fields]
#6	#1 AND #2 AND #3AND #4AND #5