铅是有害元素，对小儿的生长发育、智力有不良影响。找们于1989年5乃至1992年底，对发铅＞25PPm者134例进行了必需元素补充及口服维生素C的治疗，疗效满意，现报告如下。临床资料一、病例选择1989年5月至1992年底我院门诊具有厌食、反复感染、身材短小、智能落后等症状的部分患 Lead is a harmful element, the growth and development of children, mental retardation. Finding them in 1989 and the end of 1992 to the end of 1992, lead> 25PPm were 134 cases of essential elements and oral vitamin C treatment, with satisfactory results, are as follows. Clinical data A case selection May 1989 to the end of 1992 in our hospital with anorexia, repeated infections, short stature, intelligence and other symptoms of some backward