article 116 Culture Media 107 nonhuman 81 culture medium 73 priority journal 57 controlled study 54 metabolism 43 Animals 39 human 35 Humans 30 Culture Media, Conditioned 29 Female 28 growth, development and aging 24 enzyme activity 22 in vitro study 22 animal cell 21 human cell 21 unclassified drug 20 Fungi 19 chemistry 19 animal 18 female 18 Mice 17 cell proliferation 17 enzymology 17 pH 16 Cells, Cultured 15 Temperature 15 carbon 15 Support, Non-U.S. Gov't 14