deletions | additions       diff --git a/layout.md b/layout.md  index 0f9b6ba..e035f68 100644  --- a/layout.md  +++ b/layout.md 
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discussion.tex  materials.tex  Acknowledgments.tex  sectionFigure_Legends.tex Figures.tex  figures/fig_TAC_timeline/TAC_timeline.jpg  figures/fig_span_delay/span_delay.jpg  figures/fig_spikes/dsex.jpg