Mitrea, N., Mosoiu, D., Vosit-Steller, J. and Rogozea, L. 2016. Evaluation of the optimal positioning of subcutaneous butterfly when administering injectable opioids in cancer patients. Medicine and Pharmacy Reports. 89, 4 (Oct. 2016), 486-492. DOI:https://doi.org/10.15386/cjmed-660.