TY - GEN AU - Smith,D L AU - Regan,M G TI - HLA-B27 typing SN - 0003-4819 PY - 1980///0825 KW - HLA Antigens KW - Histocompatibility Testing KW - Humans KW - Joint Diseases KW - diagnostic imaging KW - Radiography KW - Rheumatic Diseases KW - immunology KW - Sacroiliac Joint KW - Spondylitis N1 - Publication Type: Letter ER -