2、 Concepts neonatal period(新生儿期) neonate, newborn(新生儿) Neonatology (新生儿学) perinatal period(闺产期) perinatal infant (围产儿 Perinatology (围产医学)neonatal period (新生儿期) neonate，newborn (新生儿) Neonatology (新生儿学) perinatal period (围产期) perinatal infant (围产儿) Perinatology (围产医学) 2、Concepts N I CU