Key points are not available for this paper at this time.
The classification of affective disorders has been a topic of controversy for years. The literature is filled with tentative attempts to order this large group of patients. Such attempts have brought surprisingly little resolution of the issues involved. There are those who would make numerous subdivisions within the affective disorders, and others who see affective illness as a unitary disorder.
Woodruff et al. (Thu,) studied this question.