Participants at the National Foundation for Cancer Research Conference in Montecito, CA, February 11–12, 1983. Front row, from left: Harold Swartz; Lester Packer, Franklin Salisbury, Albert Szent-György, Trevor Slater, Patrick Riley, Hermann Esterbauer. Second row, from left: Keith Ingold, Bill Pryor, John Ward, Rolf Mehlhorn, Helmut Sies, Alexandre Quintanilha, Norman Krinsky, Peter Gascoyne, Bruce Demple, Martyn Smith, and Robin Willson.