Comorbidity between reading disability and math disability: concurrent psychopathology, functional impairment, and neuropsychological functioning.
Willcutt EG, Petrill SA, Wu S, Boada R, Defries JC, Olson RK, Pennington BF. Comorbidity between reading disability and math disability: concurrent psychopathology, functional impairment, and neuropsychological functioning. J Learn Disabil. 2013 Nov-Dec; 46(6):500-16.