Original sentence: " Thompson, Rivara and Thompson were already committed advocates of helmet legislation before publishing their first study; their report for the Cochrane review has also been criticised for being dominated by their own work.Two activists asked "How robust must the evidence be when the benefits of wearing helmets are so patently obvious.What is the downside to wearing a helmet, other than the mussing of Minerva's hair
Edited sentence: Thompson, Rivara and Thompson were already committed advocates of helmet legislation before publishing their first study; their report for the Cochrane review has also been criticised for being dominated by their own work