1. Secretary of State for Health.The Health of the Nation. London, HMSD 1991 (1523).
2. World Health Statistics Annual 1990;World Health Organisation,1991
3. World Health Organization.Young People’s Health—A challenge for Society. Technical report series—731 WHO Geneva, 1986: 46.
4. World Health Organization.Woman and Tobacco. WHO, Geneva, 1992: 26.
5. World Health Organization. SmokelessTobacco Control Technical Report Series 1988; 29: 73.