Hélène Virrantaus

Oct 17, 2023 | bmjopen.bmj.com | Helena Liira |Hélène Virrantaus |Tatiana Posharina |Aleksandra Sulg

Methods and analysisThe Long COVID Cohort Study is a prospective, single-site cohort study conducted at the HUS Clinic for Long-Term Effects of COVID-19, in Helsinki, Finland. The patients admitted to the clinic present cases from the more severe and prolonged spectrum of persistent symptoms after a COVID-19 infection. Patients are referred from other university hospital clinics or primary care.