Regan L. Bailey, Jaime J. Gahche, Cindy V. Lentino, Johanna T. Dwyer, Jody S. Engel, Paul R. Thomas, Joseph M. Betz, Christopher T. Sempos, Mary Frances Picciano
J Nutr. 2011 February; 141(2): 261–266. Published online 2010 December 22. doi: 10.3945/jn.110.133025