Portal vein thrombosis(PVT)is a common complication of liver cir-rhosis.Gao et al.[1]reported that the prevalence of PVT in patients with cirrhosis is 8.82%.With
Laeverin(LVRN)was first detected on the outer layer of the chorion laeve and migrating extrav-illous trophoblasts(EVTs).It is an enzyme that plays an important