Table 1.

Search results of main keywords in various databases

Keywords	Medline	PubMed central	Scopus	Google scholar	Springer	Science Direct
Glycoprotein	1648	316199	290351	1610000	384	290351
Laminin	98	48433	50410	346000	380	50410
Hyaluronic acid	421	23122	36998	294000	4512	36998
Fibronectin	308	80529	82951	725000	810	82951
Liver fibrosis	3136	151178	133810	1900000	2685	133813
Cirrhosis	7385	299832	153855	1130000	221	153858
Liver biopsy	2214	310432	202684	1910000	2948	202688