deletions | additions       diff --git a/layout.md b/layout.md  index 4fd144e..4231a4b 100644  --- a/layout.md  +++ b/layout.md 
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abstract.md  Introduction.md  Methods_Study_Questions_Selection_of__.md Methods.md  collabnotes.tex  extabstract.tex  List_of_references_Peter_Dowrick__.md