@incollection{Goh12,
author = {Maree T. Smith and Wei H. Goh},
title = {Opioid Analgesics},
booktitle = {Pain Management},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Gabor B. Racz and Carl E. Noe},
chapter = {14},
doi = {10.5772/29035},
url = {https://doi.org/10.5772/29035}
}