complementary DNA article 100 nonhuman 86 priority journal 66 controlled study 64 Animals 54 nucleotide sequence 44 unclassified drug 42 genetics 40 metabolism 40 messenger RNA 38 gene expression 36 RNA 32 Molecular Sequence Data 30 molecular cloning 30 signal transduction 30 animal cell 28 human 28 reverse transcription polymerase chain reaction 28 DNA, Complementary 26 Humans 26 RNA, Messenger 26 Amino Acid Sequence 24 Western blotting 22 amino acid sequence 22 animal 22 animal tissue 22 animal experiment 20 gene sequence 20 male 20