Referens 5

Grant, I. »Neuropsychological and Psychiatric Disturbances in Multiple Sclerosis« in Multiple Sclerosis, edited by Mc Donald, W.I and Sillberg, D.H. London, Butterworths 1986, pp. 134-152

Warren, S., Greenhill,S. and Warren,K.G., »Emotional Stress and Development of Muliple Sclerosis: Case-Control Evidence of a Relationship« Chron Dis 1982:35 pp-821-831

»In systematic investigations of events in the lives of MS patients which are outside the normal daily experience and which may lead to psychological stress, it was shown that 70 percent to 80 percent of MS patients had experienced such events, compared to only 20 percent of controls.«