1. Safety and Effectiveness of Palliative Drug Treatment in the Last Days of Life—A Systematic Literature Review 
Kristian Jansen, MD, Dagny F. Haugen, MD, PhD, Lisa Pont, PhD, Sabine Ruths, MD, PhD 
Journal of Pain and Symptom Management 
Volume 55, Issue 2, Pages e3 (February 2018)
DOI: /j.jpainsymman
Copyright © 2017 The Authors Terms and Conditions

2. Fig. 1 PRISMA diagram of study selection.
Journal of Pain and Symptom Management  , e3DOI: ( /j.jpainsymman )
Copyright © 2017 The Authors Terms and Conditions