title: Hypersomnia, multiple-system symptomatology, and selective IgA deficiency.
mesh_terms: D000328:Adult; D000342:Affective Symptoms / Q000178:diet therapy / Q000276:immunology; D006970:Disorders of Excessive Somnolence / Q000178:diet therapy / Q000276:immunology*; D004406:Dysgammaglobulinemia / Q000178:diet therapy / Q000276:immunology*; D005512:Food Hypersensitivity / Q000178:diet therapy / Q000276:immunology; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis*; D008286:Malabsorption Syndromes / Q000178:diet therapy / Q000276:immunology; D008297:Male; D011581:Psychological Tests; D012130:Respiratory Hypersensitivity / Q000276:immunology; D012893:Sleep Wake Disorders / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A