Anja C Huizink, Robert F Ferdinand, Jan van der Ende, Frank C Verhulst
Huizink A C, Ferdinand R F, van der Ende J, Verhulst F C.
Symptoms of anxiety and depression in childhood and use of MDMA: prospective, population based study
BMJ 2006; :bmj;bmj.38743.539398.3Av1
doi:10.1136/bmj.38743.539398.3A