TY - RPRT TI - MHC class II structure, occupancy and surface expression determined by post-endoplasmic reticulum antigen binding. AU - R N Germain AU - L R Hendrix PY - 1991 DO - 10.1038/353134a0 UR - https://pubmed.ncbi.nlm.nih.gov/1891045/ ID - 1891045 ER -