Differing assistance strategies for maternal and paternal grandmothers have also been demonstrated. Phenotypic patterns are variant to possible expressions from paternal and maternal genotypes. The studies suggest sharp contrast between the maternal and paternal component of Parsis. They do not have separate terms for maternal or paternal grandparents. He is of paternal Serbian and maternal Croatian descent. Pre-eclampsia is one of the leading causes of maternal and perinatal morbidity and mortality worldwide. She was raised by her mother and maternal grandparents. Prolactin promotes neurogenesis in maternal and fetal brains. Maternal and infant mortality rates have also been cut significantly. Differences in gene activation between maternal and fetal DNA can be exploited. Every Mother Counts to raise awareness for maternal and child health. Child mortality is caused by factors including poverty, environmental hazards, and lack of maternal education. In the field of health, maternal and infant mortality rates have been cut significantly. The World Health Organization certifies countries as having eliminated maternal or neonatal tetanus. Also endorsed was a global monitoring framework for maternal, infant and child nutrition.