Communications are concise and should not exceed four journal pages (~2000 words) in length; they may be accompanied by supplementary material. Communications start with a brief unreferenced abstract ...

The abstract is typically 250 words, unreferenced. Articles have up to 10 display items (figures and/or tables). An Introduction section is followed by sections headed Results, Discussion ...

The abstract is typically 150 words, unreferenced. Articles have up to 10 display items (figures and/or tables). An Introduction section is followed by sections headed Results, Discussion ...