the results of pathological analysis of 198 placentae from preterm deliveries of 28-37 week pregnancy in year 1985-1988 were presented grossly there were : placenta previa and low implantation 2.91 % , bipartate placenta and rupture of marginal sinus 0.97 % , large placenta 2.91 % , short cord 4.85 % , velamentous insertion of cord 3.88 , etc ;
C0032046
placenta previa
C0032043
placenta