B. Alafchi, S. Yazdi-Ravandi, R. Najafi-Vosough, A. Ghaleiha, and M. Sadeghifar, “Forecasting New Cases of Bipolar Disorder Using Poisson Hidden Markov Model”, Int Clin Neurosci J, vol. 5, no. 1, pp. 7–10, Mar. 2018.