I: General Aspects of Follow-up Research.- The Significance of Follow-up Investigations.- Long-Term Course of Anorexia Nervosa: A Review of the Literature.- Outcome Assessment.- The Anorexia Nervosa Symptom Score: A Multidimensional Tool for Evaluating the Course of Anorexia Nervosa.- Follow-up of Males with Eating Disorders.- II: Follow-up Studies of Anorexia and Bulimia Nervosa.- The Heidelberg-Mannheim Study: Long-Term Follow-up of Anorexia Nervosa Patients at the University Medical Center - Background and Preliminary Results.- Somatic Findings at 12-Year Follow-up of 103 Anorexia Nervosa Patients: Results of the Heidelberg-Mannheim Follow-up.- A Prospective Follow-up Study in Early-Onset Eating Disorders.- Long-Term Outcome in Anorexia Nervosa Inpatients.- The German Longitudinal Bulimia Nervosa Study I.- Long-Term Follow-up of Bulimic Patients Treated in Integrated Behavioural and Psychodynamic Treatment Programmes.- A Long-Term Follow-up Study of Outpatients with Bulimia Nervosa Treated in a Structured Group Psychotherapy Program.- A Large-Scale Longitudinal Follow-up Study of Patients with Eating Disorders: Methodological Issues and Preliminary Results.- The Prognosis of Eating Disorders: A Clinician's Approach.- Chronicity in Anorexia Nervosa: Results from the Swedish Long-Term Study.- What Can We Learn from Long-Term Outcome of Anorexia and Bulimia Nervosa?.- III: Special Issues.- Genetic Determinants in Anorexia Nervosa: Results of Studies in Twins.- Menstrual Disorder and Other Hormonal Disturbances.- Aspects of the Natural History of Normal and Disordered Eating and Some Methodological Considerations.- Important Factors in the Process of Recovery According to Patients with Anorexia Nervosa.- Social Support and Long-Term Course of Anorexia Nervosa.- Ego Strength, Object Relations, and Life Events as Outcome Predictors in Restricting Anorexia Nervosa and Normal-Weight Bulimia Nervosa.- What Happened to the "Tasting Girls"? A Follow-up in Retrospect.- Treatment of Anorexia Nervosa: An Interview.- Outlook.