Occurrence of maternal and paternal spindles in unfertilized human oocytes: possible relationship to nucleation defects after silent fertilization.
Van Blerkom J, Davis P, Alexander S. Occurrence of maternal and paternal spindles in unfertilized human oocytes: possible relationship to nucleation defects after silent fertilization. Reprod Biomed Online. 2004 Apr; 8(4):454-9.