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. 2017 Mar 14;7:44229. doi: 10.1038/srep44229

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(a) Fragmented DNA induced by DNaseI treatment was detected by TUNEL (red) as a positive control. Nuclei were counterstained with DAPI (blue). Rat cornea sections were from saline treatment (b), TML prodrug nano eye-drops treatment (c), or Azopt treatment (d). Scale bar, 50 μm.