Croonenberghs J, Van Grieken S, Wauters A, Van West D, Brouw L, Maes M, Deboutte D. Serum testosterone concentration in male autistic youngsters.
Neuro Endocrinol Lett. 2010 Jan;
31(4): 483-488
Croonenberghs J, Wauters A, Deboutte D, Verkerk R, Scharpe S, Maes M. Central serotonergic hypofunction in autism: results of the 5-hydroxy-tryptophan challenge test.
Neuro Endocrinol Lett. 2007 Aug;
28(4): 449-455