added note about ethnicity to readme. closes #10.[skip ci]

bids-apps · Oct 18, 2017 · 50d4bba · 50d4bba
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diff --git a/README.md b/README.md
@@ -23,6 +23,9 @@ Freesurfer's 5.3.0 installation, not the 5.3.0-HCP installation;
 2. FreeSurfer data needs to be BIDS-formatted, i.e. subject folders
 should be named *sub-<subject_label>*, (e.g., sub-01, sub-02...)
 
+**Also important:** if you are comparing groups regarding brain-age,
+make sure that the groups are well matched (e.g. regarding ethnicity;
+see [here](https://github.com/BIDS-Apps/baracus/issues/10)).
 
 ## Acknowledgements
 If you use BARACUS in your work please cite: