fibronectin article 90 priority journal 90 human 74 nonhuman 68 Animals 60 Humans 60 Fibronectins 54 controlled study 54 alternative RNA splicing 48 Alternative Splicing 44 human cell 42 Transcription, Genetic 36 animal cell 36 messenger RNA 36 transcription regulation 34 exon 32 Mice 30 RNA polymerase II 30 promoter region 30 Transfection 26 RNA Polymerase II 24 genetic transcription 24 in vivo study 24 protein expression 24 unclassified drug 24 Exons 22 Promoter Regions (Genetics) 22 RNA, Messenger 22 cell culture 22