Empty MHC class I molecules come out in the cold

Authors: Hans-Gustaf Ljunggren, Nico J. Stam, Claes Öhlén, Jacques Neefjes, Petter Höglund, Marie-Thérèse Heemels, Judy Bastin, Ton N. Schumacher, Alain Townsend, Klas Kärre, Hidde L. Ploegh - Nature 1990 cited by 936