E Dougherty, B Pierce, C Ma, T Panzarella, G Rodin and C. Zimmermann
American Journal of Hospice and Palliative Medicine 26 ( 2 ): 105 - 111 , 2009
R. P Riechelmann, D Burman, I. F Tannock, G Rodin and C. Zimmermann
American Journal of Hospice and Palliative Medicine 27 ( 2 ): 106 - 110 , 2010