Perinatal period corresponds to
Peaining to the period immediately before and after bih. The perinatal period is defined in diverse ways. Depending on the definition, it stas at the 20th to 28th week of gestation and ends 1 to 4 weeks after bih. Ref : Nelson paediatrics chapter : Growth and develop
28 weeks of gestation to 7 days after bih
Period of labour to newborn period
Third trimester of pregnancy to newborn period
36 weeks of gestation to 3 days after bih
Growth and development