DNA repair DNA Repair 50 Humans 46 controlled study 46 DNA damage 44 DNA Damage 42 article 42 human 42 DNA 36 nonhuman 36 human cell 32 Animals 30 Ultraviolet Rays 30 metabolism 28 apoptosis 24 ultraviolet radiation 24 Cyclin-Dependent Kinase Inhibitor p19 22 animal cell 22 genetics 22 priority journal 20 protein expression 20 Apoptosis 18 Cell Line 18 cyclin dependent kinase inhibitor 2D 18 enzyme activity 18 ATM protein 16 Mice 16 cell cycle 16 genotoxicity 16 mouse 16