TABLE 1.

Statistic of samples used in this study.

Index	Class	Sample size
1	Benign ovarian disease	29
2	Borderline ovarian tumor	66
3	Breast cancer	115
4	Colorectal cancer	115
5	Esophageal cancer	88
6	Gastric cancer	115
7	Hepatocellular carcinoma	81
8	Lung cancer	115
9	Non-cancer	2759
10	Ovarian cancer	333
11	Pancreatic cancer	115
12	Sarcoma	115
In total		4046