title: Studies in the classification of affective disorders. The relationship between anxiety states and depressive illnesses. II.
mesh_terms: D000342:Affective Symptoms / Q000145:classification*; D000704:Analysis of Variance; D001008:Anxiety Disorders / Q000175:diagnosis*; D003863:Depression / Q000175:diagnosis*; D005500:Follow-Up Studies; D006801:Humans; D011379:Prognosis