Hermann Janice R, Parker Stephany P, Brown Barbara J, Siewe Youmasu J, Denney Barbara A, Walker Sarah J
Oklahoma Cooperative Extension Service, Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078-6141, USA.
J Nutr Educ Behav. 2006 May-Jun;38(3):201-2. doi: 10.1016/j.jneb.2006.02.002.