fibroblast growth factor 8 isoform FGF-8B level (OBA_2050168) is the amount of a fibroblast growth factor 8 isoform FGF-8B when measured in anatomical entity. Also known as: anatomical entity fibroblast growth factor 8 isoform FGF-8B amount, fibroblast growth factor 8 isoform B amount.