Dunbar, James A; Hernan, Andrea L; Janus, Edward D; Vartiainen, Erkki; Laatikainen, Tiina; Versace, Vincent L; Reynolds, John; Best, James D; Skinner, Timothy C; O'Reilly, Sharleen L; Mc Namara, Kevin P; Stewart, Elizabeth; Coates, Michael; Bennett, Catherine M; Carter, Rob