尽管热带国家太阳照射充足 ,但营养性佝偻病患儿仍很常见。有些学者认为婴儿期后佝偻病的原因常常是膳食钙缺乏而不是维生素 D(Vit D)。为此 ,进行以下实验 ,以观察营养性佝偻病患儿饮食钙摄入量以及补充钙和 /或 Vit D的疗效。实验为 2 4周随机双盲对照试验 ,将12 3名尼日利亚 Children with trophoblastic rituals are still common, despite adequate sun exposure in tropical countries. Some scholars believe that the cause of rickets in infancy is often due to dietary calcium deficiency rather than vitamin D (Vit D). For this purpose, the following experiment was conducted to observe the dietary calcium intake of children with nutritional rickets and the effect of calcium and / or vitamin D supplementation. The experiment was a 24-week randomized, double-blind, controlled trial of 12 3 Nigeria