Scientific Investigations
Sleep Complaints in the Adult Brazilian Population: A National Survey Based on Screening Questions
Lia Rita A. Bittencourt, M.D., Ph.D.1; Rogerio Santos-Silva, Ph.D.1; Jose A. Taddei, M.D., Dr.P.H.2; Monica L. Andersen, Ph.D.1; Marco T. de Mello, Ph.D.1; Sergio Tufik, M.D., Ph.D.1
1Department of Psychobiology and 2Department of Pediatrics, Universidade Federal Sao Paulo, UNIFESP, Sao Paulo, Brazil
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