Before revision: The North Karelia Project was a public health project first conducted from 1972 to 1977 in North Karelia and from 1977 to 1997 in all of Finland.
After revision: due to the successThe North Karelia Project was a public health project first conducted from 1972 to 1977 in North Karelia and from 1977 to 1997 in all of Finland.