sustainability Article Demographic and Social Dimension of the COVID-19 Pandemic in Polish Cities: Excess Deaths and Residents' Fears Barbara Cies´lin´ ska 1,* and Anna Janiszewska 2 1 Instytut Socjologii, Uniwersytet w Białymstoku, pl. NZS 1, 15-420 Białystok, Poland 2 Faculty of...