TY - RPRT TI - Serotonergic functioning in children with oppositional defiant disorder: a sumatriptan challenge study. AU - Heddeke Snoek AU - Stephanie H M van Goozen AU - Walter Matthys AU - Hein O Sigling AU - Hans P F Koppeschaar AU - Herman G M Westenberg AU - Herman van Engeland PY - 2002 DO - 10.1016/s0006-3223(01)01230-6 UR - https://pubmed.ncbi.nlm.nih.gov/11958783/ ID - 11958783 ER -