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Thus , there are depressive disorders , of which the best known and most researched is major depressive disorder commonly called clinical depression or major depression , and bipolar disorder , formerly known as " manic depression " and described by intermittent periods of manic and depressed episodes .
 major depressive disorder, bipolar disorder, depressed
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 major depressive disorder, bipolar disorder, depressed