1825195 YDF ytterbium-doped fiber 17 1825186 YDF Yb-doped fiber 9 1825193 YDF yeast dietary fiber 3 1825188 YDF Young Deadly Free 2 1825191 YDF yak dung fiber 1 1825184 YDF Yarn-dyed fabric 1 1825185 YDF Yb-doped all-fiber 1 1825192 YDF yearly diagnosed fraction 1 1825187 YDF YehD fimbriae 1 1825189 YDF Young Diabetologists' Forum 1 1825194 YDF young durian fruit 1 1825190 YDF Yucasin difluorinated analog 1