Anorexia nervosa, which affects about 2-3% of the general population, is the psychiatric illness with the highest rate of mortality. The management is often complex, requiring multiple stakeholders on the patient's physical and psychiatric. The new specialized centre "abC" (anorexia-bulimia, Centre vaudois) was created with the objective of providing quality services to patients involved and to provide a network facilitating the interaction between physicians and specialized institutions. This is an inter-institutional and interdisciplinary collaboration born of the CHUV and the eHnv (Hospitalized Institutions in Nord Vaudois). The abC includes an outpatient pole (CHUV) and a hospital unit on the site of Saint Loup. At term, it will include a day centre (CHUV).