By Sheffield, Charles
By P.O. Brennan (Sheffield Childrens Hospital, Sheffield, UK), K. Berry (Birmingham Childrens Hospital, Birmingham, C. Powell, M.V. Pusic (Montreal Childrens Hospital, Canada)
By Sheffield, Rob
By G. D. Sheffield, Sheffield, G.D.
By Sheffield, Edward
By Farndon, John, Sheffield, Rob, White, Mike, Foster
By Ennos, Roland, Sheffield, Liz
By Sheffield, Derek
By Sheffield, Gary
By Sheffield, Professor Gary
By Sheffield, Gary, Douglas Haig, John Bourne
By Sheffield, Anne, Wallace, Mike, Klein, Donald F.
By Sheffield, Jack