References
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- Department of Health . 1998 . Modernising Social Services , Cm. 4169 London : HMSO .
- Department of Health . 1999 . Caring About Carers: a National Strategy for Carers
- Heckman , J. J. 1976 . The common structure of statistical models of truncated, sample selection and limited dependent variables, and a simple estimator for such models . Annals of Economic and Social Measurement , 5 : 475 – 492 .
- Parker , G. 1993 . With This Body, Caring and Disability in Marriage , Buckingham : Open University Press .
- Twigg , J. and Atkin , K. 1994 . Carers Perceived; Policy and Practice in Informal Care , Buckingham : Open University Press .