Flow Cytometry flow cytometry 30 human 24 Humans 23 human cell 11 controlled study 9 female 9 Apoptosis 8 Article 8 article 8 cytology 8 Female 7 apoptosis 7 metabolism 7 cell proliferation 6 male 6 Animals 5 Cell Proliferation 5 Male 5 adult 5 animal 5 in vitro study 5 procedures 5 Cell Survival 4 Real-Time Polymerase Chain Reaction 4 cell function 4 chemistry 4 gene expression regulation 4 genetics 4 immunology 4