<Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (October 2016) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (October 2016) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th_colspan="2"> Postterm pregnancy </Th> </Tr> <Tr> <Th> Synonyms </Th> <Td> post-term, postmaturity, prolonged pregnancy, post-dates pregnancy, postmature birth </Td> </Tr> <Tr> <Th_colspan="2"> Classification and external resources </Th> </Tr> <Tr> <Th> Specialty </Th> <Td> pediatrics </Td> </Tr> <Tr> <Th> ICD - 10 </Th> <Td> O48, P08. 2 </Td> </Tr> <Tr> <Th> ICD - 9 - CM </Th> <Td> 766.22 </Td> </Tr> <Tr> <Th> DiseasesDB </Th> <Td> 10417 </Td> </Tr> <Tr> <Th> eMedicine </Th> <Td> med / 3248 </Td> </Tr> <Tr> <Th> MeSH </Th> <Td> D007233 </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> </Table>

Postterm infants are at risk for postmature syndrome because