At least two-thirds of published scientific papers are written by researchers whose first language is not English  

20% of the comments referees make when reviewing papers for possible publication in international journals regard English language issues  

In some disciplines, acceptance rate by journals of papers originating from the US/UK is 30.4%, and is higher than all other countries  

Adrian Wallwork is the author of more than 40 English Language Teaching (ELT) and English for Academic Purposes (EAP) textbooks. He has trained several thousand PhD students and researchers from 50 countries to write papers. He edits research manuscripts through his own proofreading and editing agency.