The SHEEP study is replicated in the county of Vasternorrland, using identical study design and exposure information retrieval techniques. Occupational exposures of particular interest in this area are combustion products, shift work, and vibrations. Cases will b e identified during 1993-1994, and the data collection will continue throughout 1995. Approximately 400 cases are expected to be included. To be reported in 1997.
Financial support: the Vasternorrland county council.