Original sentence: After working as a regimental medical officer in France in 1917, Kellaway was awarded a Military Cross for fortitude under fire, and in 1918 was promoted to Major.During 1918-19 he was attached to the Australian Flying Corps medical boards in London, concurrently undertaking research on problems of anoxia under Henry Hallett Dale.Kellaway was fortunate that his first posting saw him working with Charles James Martin, the director of London's Lister Institute, who encouraged Kellaway's scientific ambitions
Edited sentence: After working as a regimental medical officer in France during 1916-17, Kellaway was awarded a Military Cross for fortitude under fire, and in 1918 was promoted to Major.During 1918-19 he was attached to the Australian Flying Corps medical boards in London, concurrently initiating research into problems related to anoxia under Henry Dale.Kellaway was fortunate that his first posting saw him working with Charles Martin, the director of London's Lister Institute, who encouraged Kellaway's scientific ambitions