Progress report on nationwide networking system of perinatal summary records.
D003201:Computers; D005260:Female; D005313:Fetal Death; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007256:Information Systems / Q000458:organization & administration*; D007564:Japan; D008499:Medical Records; D011247:Pregnancy; D012042:Registries; D012984:Software