Social Jetlag Changes During the COVID-19 Pandemic as a Predictor of Insomnia – A Multi-National Survey Study oleh Brandão LEM, Martikainen T, Merikanto I, Holzinger B, Morin CM, Espie CA, Bolstad CJ, Leger D, Chung F, Plazzi G, Dauvilliers Y, Matsui K, De Gennaro L, Sieminski M, Nadorff MR, Chan NY, Wing YK, Mota-Rolim SA, Inoue Y, Partinen M, Benedict C, Bjorvatn B, Cedernaes J