nucleotide sequence Article 35 genetics 34 human 33 Base Sequence 30 Humans 30 controlled study 29 nonhuman 28 article 17 unclassified drug 15 metabolism 14 female 13 male 13 human cell 12 phylogeny 12 Animals 11 Male 11 sequence analysis 11 Female 10 genetic variability 10 DNA sequence 9 adult 9 gene expression 9 in vitro study 9 chemistry 8 clinical article 8 gene 8 priority journal 8 real time polymerase chain reaction 8 reverse transcription polymerase chain reaction 8