NATHANSON, M Newer methods of evaluation of patients with altered states of consciousness. [electronic resource] - The Medical clinics of North America May 1958 - 701-10 p. digital Publication Type: Journal Article ISSN: 0025-7125 Standard No.: 10.1016/s0025-7125(16)34275-4 doi Subjects--Topical Terms: ConsciousnessHumans