Add a list of Abbreviations (cf Sub

Add a list of Abbreviations (cf Submission guidelines for authors –text- list of units...); should not be too long - order alphabetically- for terms used at least four times on different pages - avoid abbreviation of short terms - not needed for wellknown and generally used abbreviations - on first appearance in the text or abstract, each term should be given in full, with abbreviation following in parentheses4. Citations- order following year – oldest reference mentioned first – throughout- no comma between author(s) and year – throughout - only in case of same author(s) but different years, write name of author(s) only 1x, and separate years by comma (eg Marquez et al. 2012, 2015)5. Write: Materials and methods6. Important: Use lowercase letters (a,b,c) to annotate parts of a figure, in text and on figures; cf Submission guidelines for authors; eg annotate Figs and write Fig S1a ....7. Acknowledgements- check carefully that names and grant numbers will be correct; after online publication, no further changes will be possible