1. The World Health Report 2002 - Reducing risks, promoting healthy life;World Health Organisation,2002
2. Air pollution and children's health;Schwartz;Pediatr,2004
3. Health impacts of indoor air pollution;Harrison;Chem Indust,1997
4. Time spent in the home by different family members;Farrow;Environ Technol,1997
5. Study of Children's Activity Patterns;Wiley,1991