Controls from the San Francisco Bay area were identified using random digit dialing and frequency matched to population-based cases on age, sex and self-identified race and ethnicity.
Schools in the target area were identified using data from the Department of Education and Children's Services, South Australia and pamphlets were sent to teachers and principals to be distributed to children in childcare, kindergarten, primary and the lower levels of high schools.
The strengths of this study include the fact that all incident diabetic subjects in a defined geographical area were identified using uniform diagnostic criteria and followed over a long time period.
The areas were identified using the ACM Computing Classification Systemc.
More than 170,000 unique protected areas were identified using the International Union for Conservation of Nature's World Database on Protected Areas.
The (LPI) index is calculated at different depths between 0 to 20 m and the liquefaction and non-liquefaction areas are identified using the index.
The exact locations of fluoride endemic areas are identified using Google Earth and Isopleths techniques to help the Government adopt remedial measures to the people under the risk of fluorosis in that particular area.
The cortical areas were identified using a brain atlas (Paxinos et al. 1999).
