The core symptomatology of anorexia nervosa (AN) consists of an intertwining of primary behavioral features and
cognitions with mental and physical symptoms due to
starvation, which both differ depending on age and stage of
the disorder [1, 2]. We need a broad classification for AN,
which (a) is able to account for this complexity and other
relevant aspects such as cross-cultural differences [3], (b) is
based on empirically based, easy-to-apply and replicable
diagnostic criteria for clinicians and researchers and (c) has
a high sensitivity and specificity [2]