Fishman PA, Ding V, Hubbard R, Ludman EJ, Pabiniak C, Stewart C, Morales L, Simon GE. Impact of deductibles on initiation and continuation of psychotherapy for treatment of depression. Health Serv Res. 2012 Aug;47(4):1561-79. doi: 10.1111/j.1475-6773.2012