cytology 156 Cytology 150 human 133 Humans 123 Cells 84 metabolism 82 Article 79 Animals 67 animal 66 controlled study 62 physiology 61 nonhuman 46 cell culture 45 male 45 female 44 genetics 43 Cells, Cultured 42 drug effect 41 mouse 41 adult 40 Female 38 Male 37 Mice 37 article 35 human cell 33 Computational Biology 32 biology 32 procedures 31 cell differentiation 30 gene expression 29