title: Letter: HL-A and infective sacroileitis.
mesh_terms: D001168:Arthritis / Q000276:immunology* / Q000382:microbiology; D001424:Bacterial Infections / Q000150:complications; D005260:Female; D006649:Histocompatibility Antigens; D006801:Humans; D008297:Male; D012446:Sacroiliac Joint
chemical_list: D006649:Histocompatibility Antigens