Adult Humans human cell human 80 controlled study 72 article 62 priority journal 60 Male 57 Female 56 adult 54 female 48 male 43 Middle Aged 33 clinical article 24 protein expression 24 human tissue 21 Article 16 metabolism 16 Animals 15 cell proliferation 15 in vitro study 15 nonhuman 15 Aged 14 Cells, Cultured 14 pathology 14 Tumor Cells, Cultured 13 animal cell 13 immunology 13 major clinical study 13 aged 12