Depression, anxiety and PTSD symptoms before and during the COVID-19 pandemic in the UK. - Young, K. S.; Purves, K. L.; Hübel, C.; Davies, M. R.; Thompson, K. N.; Bristow, S.; Krebs, G.; Danese, A.; Hirsch, C.; Parsons, C. E.; Vassos, E.; Adey, B. N.; et al. (Psychological Medicine, 2023)