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13. Disorders of sleep and wakefulness. Sassin JF Prim Care; 1984 Dec; 11(4):573-81. PubMed ID: 6569612 [TBL] [Abstract][Full Text] [Related]
14. Update on disorders of sleep and the sleep--wake cycle. Culebras A Psychiatr Clin North Am; 1992 Jun; 15(2):467-89. PubMed ID: 1603736 [TBL] [Abstract][Full Text] [Related]