@article {barrett2012two,
	title = {Two-stage meta-analysis of survival data from individual participants using percentile ratios},
	journal = {Statistics in medicine},
	volume = {31},
	number = {30},
	year = {2012},
	pages = {4296{\textendash}4308},
	publisher = {Wiley Online Library},
	author = {Barrett, Jessica K and Farewell, Vern T and Fotios Siannis and Tierney, Jayne and Higgins, Julian PT}
}
