For citations:

Pimenov M.S., Vasilyev A.V., Sadovnikov P.S., Lyashenko O.V., Sevruk Z.V., Kopaeva L.B., Skibo I.I., Vavilova T.V. Determination of cut-off threshold of normalized ratio for determining lupus anticoagulant in normal plasma of donors – healthy volunteers (large network laboratory study results). Medical alphabet. 2020;(5):34-37. (In Russ.) https://doi.org/10.33667/2078-5631-2020-5-34-37