title: HLA-DR2 and narcolepsy: not all narcoleptic-cataplectic patients are DR2.
mesh_terms: D002385:Cataplexy / Q000276:immunology*; D015802:HLA-DR2 Antigen; D000949:Histocompatibility Antigens Class II / Q000032:analysis*; D006801:Humans; D008285:Major Histocompatibility Complex; D009290:Narcolepsy / Q000276:immunology*
chemical_list: D015802:HLA-DR2 Antigen; D000949:Histocompatibility Antigens Class II