Beutel, Manfred E.Hettich, NoraErnst, MareikeSchmutzer, GabrieleTibubos, Ana N.Braehler, Elmar2022-07-052022-07-052021https://openscience.ub.uni-mainz.de/handle/20.500.12030/7320engCC-BY-4.0https://creativecommons.org/licenses/by/4.0/610 Medizin610 Medical sciencesMental health and loneliness in the German general population during the COVID-19 pandemic compared to a representative pre-pandemic assessmentZeitschriftenaufsatz