Major depressive disorder
Table:
Major depressive disorder
Other names	Clinical depression, major depression, unipolar depression, unipolar disorder, recurrent depression

Vincent van Gogh's 1890 painting
Sorrowing old man ('At Eternity's Gate')
Specialty	Psychiatry
Symptoms	Low mood, low self-esteem, loss of interest in normally enjoyable activities, low energy, pain without a clear cause[1]
Complications	Self-harm, suicide[2]
Usual onset	20s–30s[3][4]
Duration	> 2 weeks[1]
Causes	Genetic, environmental, and psychological factors[1]
Risk factors	Family history, major life changes, certain medications, chronic health problems, substance abuse[1][3]
Differential diagnosis	Bipolar disorder, ADHD, sadness[3]
Treatment	Counseling, antidepressant medication, electroconvulsive therapy, exercise[5][1]
Frequency	216 million (2015)[6]

Using the given table, determine whether the statement is entailed, neutral, or refuted. Return the result as JSON: {"answer": "YOUR ANSWER"}.

Sentence: Electroconvulsive therapy is the most commonly used form of treatment to combat the likelihood of suicide in patients afflicted with unipolar disorder.

answer: refuted