Lidström Anna-Karin, Sund Fredrik, Albinsson Bo, Lindbäck Johan, and Westman Gabriel. 2020. “Work at Inpatient Care Units Is Associated With an Increased Risk of SARS-CoV-2 Infection; A Cross-Sectional Study of 8679 Healthcare Workers in Sweden”. Upsala Journal of Medical Sciences 125 (4):305–310. https://doi.org/10.1080/03009734.2020.1793039.