Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40792-021-01272-x/MediaObjects/40792_2021_1272_Fig1_HTML.png)
Results of mixing test. Mixing test detected inhibitor of coagulation factor. A convex upward curve indicates the presence of inhibitors, including coagulation factor-neutralizing antibodies, while a convex downward curve indicates the presence of a factor deficiency