Four-Year Longitudinal Course of Children and Adolescents With Bipolar Spectrum Disorders: The Course and Outcome of Bipolar Youth (COBY) Study

B Birmaher, D Axelson, B Goldstein, M Strober, Gill, J Hunt, P Houck, W Ha, S Iyengar, E Kim, S Yen, H Hower, C Esposito Smythers, T Goldstein, N Ryan and M. Keller

American Journal of Psychiatry 166 ( 7 ): 795 - 804 , 2009