Table 4. Patients and tumors descriptions.

Authors	Mean age years	Gender [M/F]	ASA >2 n	Child-Pugh A-B-C n [%]	Cirrhosis n [%]	Mean size of the tumor cm [range]	Location of the tumor*	Number of tumours n [%]	Type of resection	Associated resections	Surgical margin cm [range]
Lai EC et al. (22)	59 [35-79]	18/7	1	A: 23 [92]	23 [92]	2.5 [1-7]	Ant. segments	NR	Minor: 24 Major: 1	NR	0.5 to 4
Lee KF et al. (23)	59 [36-85]	24/9	6	A: 33 [100]	28 [84.8]	2.5 [1.5-9]	Ant. segments	Single: 31; multiple: 2	Minor	NR	1.8 [0-4]
Kobayashi S et al. (24)	70 [37-86]	41/15	9	A: 48 [85.7] B: 8 [14.3]	NR	2 [1-9]	All segments	1 [1-3]	Minor	NR	NR
Kaneko H et al. (25)	59±8	NR	NR	A: 30 [76.9] B: 8 [21] C:1 [2.5]	39 [50.6]	<4	All segments	NR	Minor: 38 Major: 1	NR	NR
Shimada M et al. (26)	62±9	15/2	NR	NR	76.5	2.6±0.9	Ant. segments	NR	Minor	3 splenectomy	0.8±0.7
Teramoto K et al. (27)	64±10	9/6	NR	A: 5 [33.3] B: 10 [66.7]	NR	1.9±0.6	All segments	NR	NR	NR	NR
Cheung TT et al. (28)	59.5 [39-79]	22/10	NR	A: 32 [100]	28 [87.5]	2.5 [1-10]	All segments	NR	Minor	NR	0.95 [0-3]
Hu BS et al. (29)	46±12	19/11	NR	A: 24 [80] B: 6 [20]	25 [83.3]	6.7±3.1	Ant. segments	NR	NR	NR	NR
Yoon YS et al. (4)	56.5±11.7	50/19	NR	A: 62 [89.8] B: 6 [8.7] C: 1 [1.5]	38 [55]	3.1±1.5	All segments	Single: 56 [81.5]; multiple: 12 [17.3]	Minor: 60 Major: 9	NR	1.5±1.6
Chen HY et al. (30)**	G1: 57±12.6 G2: 61.6±13.1	G1: 78/19 G2: 14:5	G1: 13 G2: 1	GI: A: 79 B/C: 18 G2: A: 19	NR	G1: 2.1±0.8 G2: 3.2±1.9	All segments	NR	Minor: 104 Major: 12	NR	≤1
Sasaki A et al. (31)				A: 23 [86] B: 4 [14]	27 [100]	2.5 [1.5-6]	All segments	NR	Minor	NR	0.7 [0-2.5]
Kim HH et al. (32)	57.84±9.66	18/8	3	NR	24 [92.3]	3.15 [1-8]	All segments	NR	Minor: 22 Major: 4	NR	NR
Kanazawa A et al. (33)	69 [40-85]	16/12	NR	A: 20 [71.4] B: 8 [28.5]	28 [100]	2 [0.6-2.7]	All segments	Single: 18 [64.2]; multiple: 10 [35.7]	NR	NR	0.5 [0-1.8]

*, Ant. segments (II,III,IVb,V,VI); **, group I (GI) (≤2 segments) and group II (G2) (>2 segments); NR, no reported.