"We show that LFT is an accurate alternative to RT-PCR testing in primary care. We note the importance of administering LFT properly, here combined with clinical assessment in symptomatic patients."
https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(21)00291-1/fulltext .
https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(21)00291-1/fulltext .