Technical requirement	Type of gastrectomy	Grade I recommendations	Grade II recommendations	Grade III recommendations
Type of lymphadenectomy	Distal gastrectomy
	D1	Lymph node stations: No. 1, 3, 4sb, 4d, 5, 6, 7
	D1+	Lymph node stations: D1 + No. 8a, 9
	D2	Lymph node stations: D1 + No. 8a, 9, 11p, 12a (Evidence 1A)	Selective resection of lymph node 14v* based on D2 lymphadenectomy (Evidence 2A)
	Proximal gastrectomy
	D1	Lymph node stations: No. 1, 2, 3a, 4sa, 4sb, 7 (Evidence 1A)
	D1+	Lymph node stations: D1 + No. 8a, 9, 11p (Evidence 1A)**
	D2			Lymph node stations: D1 + No. 3b, 8a, 9, 11p
	Total gastrectomy
	D1	Lymph node stations: No. 1–7
	D1+	Lymph node stations: D1 + No. 8a, 9, 11p (Evidence 1A)**
	D2	Lymph node stations: No. 1 to 7, 8a, 9, 10, 11, 12a (If the tumor has invaded the esophagus, stations No. 19, 20, 110, and 111 should be dissected) (Evidence 1A)	Similar as Grade I D2 stations + station No. 10*** (Evidence 2A)
Digestive tract reconstruction	Distal gastrectomy	Billroth I (Evidence 1A) Billroth II (Evidence 1A)		Roux-en-Y anastomosis (Evidence 2B)
	Proximal gastrectomy	Esophagogastrostomy (Evidence 1A)	Tubular gastroesophageal anastomosis (Evidence 2A)	Jejunal interposition for gastric replacement (Evidence 2B)
	Total gastrectomy	Roux-en-Y anastomosis (Evidence 1A)		Roux-en-Y anastomoses with jejunal pouch reconstruction (Evidence 2B) Jejunal interposition for gastric replacement (Evidence 2B)

* For patients with metastatic lymph nodes in the middle and lower portions of the stomach, and preoperative stage evaluation considered as cT3 or cT4

** Proximal gastrectomy D1+ is recommended for early-stage proximal gastric cancer

*** For patients with primary tumor > 6 cm, located at the greater curvature, in the upper or middle portions of the stomach, and preoperative stage evaluation considered as cT3 or cT4