Article Title,Year,Volume,Issue,Page Range,Author A follow-up study of 128 closed head injuries in twins using co-twins as controls,1958,123,,1-125,Dencker A psychometric study of identical twins discordant for closed head injury,1958,122,,1-50,Dencker Attempted suicide; experience of five hundred cases at a general hospital,1955,103,,1-45,Ettlinger Acute head injuries in boxers; clinical and electroencephalographic studies,1954,95,,2-42,Melin