The CC75C study (http://www.cc75c.group.cam.ac.uk) is a population-based study which began in 1985.
This study, which began in late 2009, is based on the 1984 criteria for the clinical diagnosis of AD.
The Whitehall II study is a longitudinal research study, which began in 1985 and recruited 10,308 participants aged between 35 55 years from 20 London based civil service departments.
The current study, which began in the George W. Bush administration, builds on the findings of the 2000 one.
The HUD study, which began in 1994, involved housing projects in Baltimore, Chicago, Los Angeles, New York and Boston.
The study, which began in September 2012, is attracting interest from federal agencies, including the National Institute of Environmental Health Sciences.
Data used for this study were from a relatively old cohort study, which began in 1948.
The Institutional Review Board at UT Southwestern Medical Center approved this study, which began in August 2006 and ended in May 2008.
The study, which began in summer 2012, is being conducted at the FDA's National Center for Toxicological Research (NCTR).
This study, which began in January 2001, consisted of children living in nine neighborhoods in Torreon.
The study, which began on 24 August 2007, was completed on 9 April 2008.
