Research abstracts Toward evidence-based prescribing at end of life: a comparative analysis of sustained-release morphine, oxycodone, and transdermal fentanyl, with pain, constipation, and caregiver interaction outcomes in hospice patients Share Share on Facebook Share on Twitter Publication year 2006 Author(s) Weschules, D. J.; Bain, K. T.; Reifsnyder, J.; McMath, J. A.; Kupperman, D. E.; Gallagher, R. M.; Hauck, W. W.; Knowlton, C. H. Pages 320-9 Volume 7 Number 4 Share Share on Facebook Share on Twitter Research abstracts