Psychological burden of healthcare professionals in Germany during the acute phase of the COVID-19 pandemic: differences and similarities in the international context - Skoda, E M; Teufel, M; Stang, A; Jöckel, K H; Junne, F; Weismüller, B; Hetkamp, M; Musche, V; Kohler, H; Dörrie, N; Schweda, A; Bäuerle, A (J Public Health (Oxf), 2020)