1. Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
2. Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
3. ECRC Experimental and Clinical Research Center, Charité – Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
4. Department of Anesthesiology and Intensive Care Medicine CCM/CVK, Charité – Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
5. Unidade de Bioestatística - Diretoria de Pesquisa (DIPE), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
6. Department of Statistics, Institute of Mathematics and Statistics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
7. Department of Physiology, Universidade Federal de São Paulo, São Paulo, Brazil