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NYS Psychiatric Institute at Columbia University Medical Center 1051 Riverside Drive, Unit 30 New York, NY 10032
"It's like a 'nervous breakdown,'" Dr. Michael First, a professor of clinical psychiatry at Columbia University, told CBSNews.com. "It's all these words that people use with no precise meaning."
Read more at http://www.cbsnews.com/8301-504763_162-57479224-10391704/what-makes-a-person-a-psychopath/