Depressive symptoms among Olympic athletes during the Covid-19 pandemic - Lambert, Christophe; Schütz, Lisa-Marie; Rice, Simon; Purcell, Rosemary; Stoll, Theresa; Trajdos, Martyna; Ritzmann, Ramona; Böhm, Anna‑Lena; Walz, Martin (BMC sports science, medicine & rehabilitation, 2022)