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Headaches and Psychopathology in Children and Adolescents." Journal of the American Academy of Child and Adolescent Psychiatry 37, no. 9 (1998): 951-958.
"School Refusal and Psychiatric Disorders: A Community Study." Journal of the American Academy of Child and Adolescent Psychiatry 42, no. 7 (2003): 797-807.
"Somatic Complaints and Psychopathology in Children and Adolescents: Stomach Aches, Musculoskeletal Pains, and Headaches." Journal of the American Academy of Child and Adolescent Psychiatry 38, no. 7 (1999): 852-860.
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