deletions | additions       diff --git a/acknowledgments.tex b/acknowledgments.tex  index 70b9113..53b8df9 100644  --- a/acknowledgments.tex  +++ b/acknowledgments.tex 
...
they contributed; authors should obtain permission to acknowledge from all those  mentioned in the Acknowledgements section.  Please do not list grant funding in this section (this should be included in the Grant information section - See13  above).