 The children were later investigated at ages 10, 13, 16, and 22.Leif Elinder, a Swedish pediatrician and Eva Kärfve, a sociologist at the University of Lund, had for a number of years written numerous articles and a book where they rejected most of neuropsychiatry, and specifically most research carried out by the Gillberg group.In Kärfve's book (Kärfve, 2000) she suggested that the purpose of the DAMP diagnosis was "to achieve no other permanent change than segregation".