Article 64 human 64 controlled study 52 Humans 49 nonhuman 40 male 30 female 27 metabolism 25 colony formation 23 Male 22 cell proliferation 22 genetics 22 human cell 22 Animals 21 animal 21 colony forming unit 21 drug effect 20 adult 19 unclassified drug 19 Ant colony optimization 18 Female 18 gene expression 18 pathology 18 mouse 17 bacterial count 15 chemistry 15 Cell Proliferation 14 Western blotting 14 animal experiment 14 human tissue 14