Pertinent passage from the preprint: > Out of 404 papers accepted in less then 30 days after submission, 394 papers (97.5%) have authors with affiliations in (

Pertinent passage from the preprint: > Out of 404 papers accepted in less then 30 days after submission, 394 papers (97.5%) have authors with affiliations in (mainland) China. Out of 615 papers of which editorial processing time exceeded 40 days, 58 papers (9.5%) only have authors with affiliations in (main- land) China. This tenfold imbalance suggests a differentiated processing of papers affiliated to China characterised by shorter peer-review duration.