Prevalence of anxiety and depression of health care workers during COVID-19 – a systematic review and meta-analysis - Sialakis, Christos; Antoniou Sialaki, Panagiota; Frantzana, Aikaterini; Iliadis, Christos; Ouzounakis, Peter; Kourkouta, Lambrini (Medicine and Pharmacy Reports, 2023)