title: Lithium prophylaxis of periodic hypersomnia.
mesh_terms: D000293:Adolescent; D006970:Disorders of Excessive Somnolence / Q000517:prevention & control*; D006801:Humans; D008094:Lithium / Q000627:therapeutic use*; D008297:Male; D012893:Sleep Wake Disorders / Q000517:prevention & control*
chemical_list: D008094:Lithium