 He has been working with neurosurgeons in the former Soviet Union, mainly in Ukraine with protégé neurosurgeon Igor Kurilets, since 1992 and his work there was the subject of the BBC Storyville film "The English Surgeon" from 2007.He has a particular interest in the influence of hospital buildings and design on patient outcomes and staff morale; he has broadcast and lectured widely on this subject.In 2017, Marsh published "Admissions