13 (3): 189–200. doi:10.1080/13554790701475468. PMID 17786779. ↑ Ancelin, Marie-Laure; Carrière, Isabelle; Helmer, Catherine; Rouaud, Olivier; Pasquier, Florence; Berr, Claudine; Chaudieu, Isabelle; Ritchie, Karen (2012).