tokens: Three FGF-AS cDNAs were isolated ; the full-length FGF-AS mRNA and two alternative splice variants lacking exon 2 or exons 2 and 3 of the FGF-AS sequence .
folded_tokens: three fgf-as cdna be isolate ; the full-length fgf-as mrna and two alternative splice variant lack exon 2 or exon 2 and 3 of the fgf-as sequence .