Aberrant HLA-DR expression in the conjunctival epithelium after autologous serum treatment in patients with graft-versus-host disease or Sjögren's syndrome. oleh Katerina Jirsova, Petra Seidler Stangova, Michalis Palos, Gabriela Mahelkova, Sarka Kalasova, Ivana Rybickova, Tor Paaske Utheim, Viera Vesela