CJCP     2005 7 (6):  530-532    ISSN: 1008-8830  CN: 43-1301/R How to prevent childhood vitamin D deficiency and nutritional rickets: on new guidelines for vitamin D intake established by American Pediatric Society XIANG Wei, DING Zong-Yi, ZHENG Wei, JIANG Xiang-Ling Department of Pediatrics, People's Hospital of Hainan Province, Haikou 570311, China Received: null  Revised: null  Online: null Supporting info