Hill, R. M., Pettit, J. W., Lewinsohn, P. M., Seeley, J. R., & Klein, D. N. (2014). Escalation to Major Depressive Disorder among Adolescents with Subthreshold Depressive Symptoms: Evidence of Distinct Subgroups at Risk.

Hill, Ryan M., Jeremy W. Pettit, Peter M. Lewinsohn, John R. Seeley, και Daniel N. Klein. Escalation to Major Depressive Disorder Among Adolescents With Subthreshold Depressive Symptoms: Evidence of Distinct Subgroups At Risk. 2014.

Hill, Ryan M., et al. Escalation to Major Depressive Disorder Among Adolescents With Subthreshold Depressive Symptoms: Evidence of Distinct Subgroups At Risk. 2014.