title: Extraordinary association between HLA-DR2 and narcolepsy.
mesh_terms: D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000235:genetics*; D006801:Humans; D009290:Narcolepsy / Q000235:genetics*
chemical_list: D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II