Key points are not available for this paper at this time.
Conceptualizations about Mood DisordersKraepelin's introduction of the broad category of manic-depressive illness in the mid 1890s was followed by efforts to differentiate and define limits of potentially separable syndromes included in the original concept 2,3 .These efforts led to differentiation of BD and unipolar
Baldessarini et al. (2017) studied this question.