Efstathiou V, Michopoulos I, Yotsidi V, Smyrnis N, Zompola C, Papadopoulou A, Pomini V, Papadopoulou M, Tsigkaropoulou E, Tsivgoulis G, et al. Does Suicidal Ideation Increase During the Second COVID-19 Lockdown?. Psychiatry Research. 2021:113990.