Fig. 4From: Conduct disorder and somatic health in children: a nationwide genetically sensitive studya-b: Mean number of somatic problems in CD Only children (probands) and in their co-twins. (a) Neurological problems (b) Gastrointestinal problems. MZ = monzygote, DZss = dizygote same-sex, DZds = dizygot different-sex. * p < 0.05Back to article page