Referens
Kristoffersen AE, van der Werf ET, Stub T, Musial F, Wider B, Jong MC, Wode K, Danell JB, Busch M, Hoenders HJR, Nordberg JH. Consultations with health care providers and use of self-management strategies for prevention and treatment of COVID-19 related symptoms. A population based cross-sectional study in Norway, Sweden and the Netherlands. Complement Ther Med. 2022 Mar;64:102792. doi: 10.1016/j.ctim.2021.102792. Epub 2021 Nov 23. PMID: 34826590; PMCID: PMC8609665. https://doi.org/10.1016/j.ctim.2021.102792