Stress and associated factors among French university students under the COVID-19 lockdown: The results of the PIMS-CoV 19 study - Bourion-Bédès, Stéphanie; Tarquinio, Cyril; Batt, Martine; Tarquinio, Pascale; Lebreuilly, Romain; Sorsana, Christine; Legrand, Karine; Rousseau, Hélène; Baumann, Cédric (Journal of Affective Disorders, 2021)