@book{166258,
	author = {Wright, Jacqueline D. and National Center for Health Statistics U.S.},
	title = {Blood Folate and Vitamin B12},
	publisher = {U.S. Dept of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics},
	year = {1998.},
	series = {Vital and health statistics.},
	address = {Hyattsville, Md.}
}