Columbia subject headings:
Medical care, Cost of--Sri Lanka--Forecasting.
Medical care, Cost of--Sri Lanka--Mathematical models.
Older people--Medical care--Sri Lanka--Mathematical models.
Public health--Sri Lanka--Forecasting.
Harvard subject headings:
Medical care, Cost of--Sri Lanka--Forecasting.
Medical care, Cost of--Sri Lanka--Mathematical models.
Older people--Medical care--Sri Lanka--Mathematical models.
Public health--Sri Lanka--Forecasting.
Princeton subject headings: