| FGS | fibrogastroscopy; focal glomerular sclerosis |
|---|---|
| FSG | fasting serum glucose; focal segmental sclerosis |
| FSGHS | focal segmental glomerular hyalinosis and sclerosis |
| FSS | focal segmental sclerosis; Freeman-Sheldon syndrome; French steel sound |
| GFS | global focal sclerosis; guafenesin |