E. Hartmann, Frederick Baekeland, George Zwilling, and Patrick Hoy (1971)
Sleep need: how much sleep and what kind?
American Journal of Psychiatry, 127(8):1001 --1008.
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E. Hartmann, Frederick Baekeland, George Zwilling, and Patrick Hoy (1971)
American Journal of Psychiatry, 127(8):1001 --1008.
Document Actions