1.
Dietary reference intakes.
by Anonymous
September 1997
Nutrition reviews, Vol.55(9), pp.319-326
1997

2.
Choline: an essential nutrient for public health
by Zeisel, Steven
Nutrition Reviews, Nov 2009, Vol.67(11), p.615

3.
The New Mexico Aging Process Study.
by Koehler, K M
Nutrition reviews, August 1994, Vol.52(8 Pt 2), pp.S34-S37
