Problematic Exercise in Anorexia Nervosa: Testing Potential Risk Factors against Different Definitions. Rizk, Melissa; Lalanne, Christophe; Berthoz, Sylvie; Kern, Laurence; EVHAN Group; Godart, Nathalie. PloS One. 2015; e0143352: p.e0143352. doi:10.1371/journal.pone.0143352Article