Differential gene expression of FGL1 was analyzed using the Gene Expression Profiling Interactive Analysis (GEPIA), Oncomine, UALCAN, and Gene Expression Omnibus (GEO) databases.  A survival analysis was carried out using the GEPIA and PrognoScan database. 
GEPIA
Differential gene expression of FGL1 was analyzed using the Gene Expression Profiling Interactive Analysis (GEPIA), Oncomine, UALCAN, and Gene Expression Omnibus (GEO) databases.  A pan-cancer analysis was conducted using the Oncomine, TIMER, and UALCAN databases. 
Oncomine
Differential gene expression of FGL1 was analyzed using the Gene Expression Profiling Interactive Analysis (GEPIA), Oncomine, UALCAN, and Gene Expression Omnibus (GEO) databases.  A pan-cancer analysis was conducted using the Oncomine, TIMER, and UALCAN databases. 
UALCAN
Differential gene expression of FGL1 was analyzed using the Gene Expression Profiling Interactive Analysis (GEPIA), Oncomine, UALCAN, and Gene Expression Omnibus (GEO) databases. 
Gene Expression Omnibus (GEO)
GeneMANIA database and STRING database were used to analyze gene-gene interaction and protein-protein interaction, respectively. 
GeneMANIA database
GeneMANIA database and STRING database were used to analyze gene-gene interaction and protein-protein interaction, respectively. 
STRING database
A mutation analysis was conducted using the cBioPortal database, and an immune infiltration analysis was conducted using the TIMER database. 
cBioPortal database
A mutation analysis was conducted using the cBioPortal database, and an immune infiltration analysis was conducted using the TIMER database. 
TIMER database
A survival analysis was carried out using the GEPIA and PrognoScan database. 
PrognoScan database