[1] Univ Sheffield, Sch Med, Microcirculat Res Grp, Sheffield S10 2JF, S Yorkshire, England
[2] Univ Sheffield, Sch Med, Immunobiol Res Unit, Sheffield S10 2JF, S Yorkshire, England
[3] Royal Hallamshire Hosp, NHS Fdn Trust, Sheffield Teaching Hosp, Dept Histopathol, Sheffield S10 2JF, S Yorkshire, England