An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Li XM, Filipski E, Lévi F.Li XM, et al. Among authors: levi f.Chronobiol Int. 1998 Jul;15(4):323-35. doi: 10.3109/07420529808998693.Chronobiol Int. 1998.PMID: 9706410
Touitou Y, Bogdan A, Auzéby A, Lévi F.Touitou Y, et al. Among authors: levi f.Chronobiol Int. 1992 Oct;9(5):350-5. doi: 10.3109/07420529209064546.Chronobiol Int. 1992.PMID: 1394606
Reinberg A, Ugolini C, Motohashi Y, Dravigny C, Bicakova-Rocher A, Levi F.Reinberg A, et al. Among authors: levi f.Chronobiol Int. 1988;5(3):291-9. doi: 10.3109/07420528809079567.Chronobiol Int. 1988.PMID: 3219759
Kolopp M, Bicakova-Rocher A, Reinberg A, Drouin P, Méjean L, Lévi F, Debry G.Kolopp M, et al. Among authors: levi f.Chronobiol Int. 1986;3(4):265-80. doi: 10.3109/07420528609079544.Chronobiol Int. 1986.PMID: 3315255