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Dr. Ha completed a Ph.D. in Human Nutrition in 1999 and post-doctoral work at the Bone Mineral Metabolism Laboratory of the Ohio ÐÓ°ÉÊÓƵ University. Her research interests focus on nutrition education and osteoporosis prevention over the life span. Dr. Ha's recent research plans include studying: (1) the relationship between obesity, bone density and fracture in children; (2) dietary effects on bone density in children; (3) calcium and vitamin D status and bone density among the elderly; (4) effect of nutrition education on eating behavior and life style changes in college students.