Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40345-017-0097-1/MediaObjects/40345_2017_97_Fig1_HTML.gif)
Age at onset distribution in bipolar disorder type 1 patients (N = 224). Gaussian probability density function was derived by the estimated age at onset mixture function in bipolar disorder type 1 patients
Age at onset distribution in bipolar disorder type 1 patients (N = 224). Gaussian probability density function was derived by the estimated age at onset mixture function in bipolar disorder type 1 patients