" has undone my contribution claiming that ""we don't use primary sources for medical claims"" But, he is not using secondary sources because, as explained on the Teahouse, secondary sources are literature reviews or systematic reviews found in medical journals, specialist academic or professional books, and medical guidelines or position statements published by major health organizations. Not something he is doing.  
 I also find amazing his undoing my contribution without trying to reason it first here.   
 :The onus is on YOU to gain consensus for YOUR proposed change; and we don't use primary sources for medical content, so I'm not seeing consensus for it being achieved.  ||  

 Alexbrn"