title: Insightful contribution to empirical analyses of selective mutism (SM).
mesh_terms: D002648:Child; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology*; D036262:Empirical Research; D006801:Humans; D009155:Mutism / Q000150:complications* / Q000235:genetics; D009483:Neuropsychological Tests; D012720:Severity of Illness Index; D018433:Twin Studies as Topic; D014429:Twins, Dizygotic / Q000235:genetics