Abstract
Since bibliographic items had an error, it corrects as follows.
p.158, upper right of a page
(Error) Palliative Care Research 2012; 8(1): 158-67
(Correct) Palliative Care Research 2013; 8(1): 158-67
p.158, center of a page
(Error) Palliat Care Res 2012; 8(1): 158-67
(Correct) Palliat Care Res 2013; 8(1): 158-67
p.164, center of a page
(Error) Palliat Care Res 2012; 8(1): 158-67
(Correct) Palliat Care Res 2013; 8(1): 158-67