@article {14011,
	title = {Characteristics and methods of incorporating randomized and nonrandomized evidence in network meta-analyses: a scoping review},
	journal = {Journal of Clinical Epidemiology},
	volume = {113},
	year = {2019},
	pages = {1-10},
	author = {Kathryn Zhang and Paul Arora and Neha Sati and Audrey B{\'e}liveau and Natalie Troke and Areti Angeliki Veroniki and Myanca Rodrigues and Patricia Rios and Wasifa Zarin and Andrea C. Tricco}
}