Original sentence: A joint project led to the development of MRC cream no 9, the main burns treatment for part of the war.and his  political campaigning led to the Fire Guards Act of 1952.” In 1941  Sir Ashley Miles, part time director of the MRC at the Accident hospital and studied war wounds
Edited sentence: A joint project led to the development of MRC cream no 9, the main burns treatment at that time.His  political campaigning against unguarded fires and inflamable children's nightwear led to the Heating Appliances and Fireguards Act 1952.” In 1941  Sir Ashley Miles,  studied war wounds as part time director of the MRC at the Accident hospital