Montserrat-Capdevila J, Godoy P, Marsal JR, Ortega M, Pifarre J, Alseda P, Castan MT, Barbe F. Mental disorders in chronic obstructive pulmonary diseases. Perspect Psychiatr Care. 2018 Jul;54(3):398-404. doi: 10.1111/ppc.12274
Pinto MD, Greenblatt AM, Hickman RL, Rice HM, Thomas TL, Clochesy JM. Assessing the critical parameters of eSMART-MH: a promising avatar-based digital therapeutic intervention to reduce depressive symptoms. Perspect Psychiatr Care. 2016 Jul;52(3):157-68. doi: 10.1111/ppc.12112
Phanikumar CV, Maitra B. Willingness-to-pay and preference heterogeneity for rural bus attributes. J Transp Eng A-Syst. 2007 Jan;133(1).