O’Reardon J, Amsterdam JD: Overview of treatment-resistant depression. 30-46 In: Treatment-resistant mood disorders. Amsterdam JD, Hornig M, Nierenberg AN, Editors. Cambridge University Press, England 2001. p 30-46

O’Reardon J, Amsterdam JD: Overview of treatment-resistant depression. 30-46 In: Treatment-resistant mood disorders. Amsterdam JD, Hornig M, Nierenberg AN, Editors. Cambridge University Press, England 2001. p 30-46