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Effect of quercetin and isorhamnetin on the entrance of 2019‐nCoV spike pseudotyped virus into ACE2h cells. ACEh cells infected with 2019‐nCoV spike pseudotyped virus were considered as control, which luciferase luminescence value was defined as 1. The experiments were repeated three times. Data are presented as mean ± SEM. **p < .01 compared with control
