@article {pmid8117785,
	title = {Influence of methodologic factors in a pooled analysis of 13 case-control studies of colorectal cancer and dietary fiber},
	journal = {Epidemiology},
	volume = {5},
	number = {1},
	year = {1994},
	month = {Jan},
	pages = {66{\textendash}79},
	author = {Friedenreich, C. M. and Brant, R. F. and Riboli, E.}
}
