Columbia subject headings:
Birth weight, Low--England--Newcastle upon Tyne--Longitudinal studies.
Children--England--Newcastle upon Tyne--Longitudinal studies.
Children--Health and hygiene--England--Newcastle upon Tyne--Longitudinal studies.
Health surveys--England--Newcastle upon Tyne.
Premature infants--England--Newcastle upon Tyne--Longitudinal studies.
Harvard subject headings:
Birth weight, Low--England--Newcastle upon Tyne--Longitudinal studies.
Children--England--Newcastle upon Tyne--Longitudinal studies.
Children--Health and hygiene--England--Newcastle upon Tyne--Longitudinal studies.
Health surveys--England--Newcastle upon Tyne.
Premature infants--England--Newcastle upon Tyne--Longitudinal studies.
Princeton subject headings: