Pappa, S., Ntella, V., Giannakas, T., Giannakoulis, V. G., Papoutsi, E., & Katsaounou, P. (2020). Prevalence of depression, anxiety, and insomnia among healthcare workers during the COVID-19 pandemic: A systematic review and meta-analysis. Brain Behav Immun.

Pappa, Sofia, Vasiliki Ntella, Timoleon Giannakas, Vassilis G. Giannakoulis, Eleni Papoutsi, and Paraskevi Katsaounou. "Prevalence of Depression, Anxiety, and Insomnia Among Healthcare Workers During the COVID-19 Pandemic: A Systematic Review and Meta-analysis." Brain Behav Immun 2020.

Pappa, Sofia, et al. "Prevalence of Depression, Anxiety, and Insomnia Among Healthcare Workers During the COVID-19 Pandemic: A Systematic Review and Meta-analysis." Brain Behav Immun 2020.