$if(title)$

$title$

$if(authors)$

$for(authors)$$authors.name$$if(authors.aff_number)$^{$authors.aff_number$}$endif$$if(authors.corresponding)$✉$endif$$sep$, $endfor$

$if(affiliation_list)$

$for(affiliation_list)$

^{$affiliation_list.number$}$affiliation_list.name$

$endfor$

$endif$ $if(date)$

$date$

$endif$ $else$ $if(author)$

$for(author)$$author$$sep$, $endfor$$if(date)$ · $date$$endif$

$endif$ $endif$ $if(abstract)$

$if(abstract-title)$$abstract-title$$else$Abstract$endif$

$abstract$

$endif$

$endif$ $body$