Chew-Graham, C. A., Lovell, K., Roberts, C., Baldwin, R., Morley, M., Burns, A., . . . Burroughs, H. (2007). A randomised controlled trial to test the feasibility of a collaborative care model for the management of depression in older people. Oxford University Press.

Chew-Graham, Carolyn A., Karina Lovell, Chris Roberts, Robert Baldwin, Michael Morley, Alistair Burns, David Richards, i Heather Burroughs. A Randomised Controlled Trial to Test the Feasibility of a Collaborative Care Model for the Management of Depression in Older People. Oxford University Press, 2007.

Chew-Graham, Carolyn A., et al. A Randomised Controlled Trial to Test the Feasibility of a Collaborative Care Model for the Management of Depression in Older People. Oxford University Press, 2007.