Comment on

• Predictors of recurrence in bipolar disorder: primary outcomes from the Systematic Treatment Enhancement Program for Bipolar Disorder (STEP-BD).

  Perlis RH, Ostacher MJ, Patel JK, Marangell LB, Zhang H, Wisniewski SR, Ketter TA, Miklowitz DJ, Otto MW, Gyulai L, Reilly-Harrington NA, Nierenberg AA, Sachs GS, Thase ME. Perlis RH, et al. Am J Psychiatry. 2006 Feb;163(2):217-24. doi: 10.1176/appi.ajp.163.2.217. Am J Psychiatry. 2006. PMID: 16449474 Clinical Trial.
• Clinical features of bipolar depression versus major depressive disorder in large multicenter trials.

  Perlis RH, Brown E, Baker RW, Nierenberg AA. Perlis RH, et al. Am J Psychiatry. 2006 Feb;163(2):225-31. doi: 10.1176/appi.ajp.163.2.225. Am J Psychiatry. 2006. PMID: 16449475
• Clinical correlates and familial aggregation of age at onset in bipolar disorder.

  Lin PI, McInnis MG, Potash JB, Willour V, MacKinnon DF, DePaulo JR, Zandi PP. Lin PI, et al. Am J Psychiatry. 2006 Feb;163(2):240-6. doi: 10.1176/appi.ajp.163.2.240. Am J Psychiatry. 2006. PMID: 16449477