- Correspondence to Dr Hong-Wen Chen, Hospice and Palliative Care Center, Mackay Memorial Hospital, 92, Sec. 2, Zhongshan N. Rd., Taipei 104, Taiwan;
- Received April 19, 2010
- Revised August 24, 2010
- Accepted September 2, 2010
- First published November 8, 2010.
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