年龄组

1.Methods To analyse enzyme activity,electrophoresis,immunological measurment,chramatography and phosphatidase D of 500 normal child.

收集青少年不同年龄组正常人血清500例,进行酶活分析、电泳、免疫测定、层析酶分解试验。

2.However, groups of enuretic children who were aged 5 to 9 or aged 10 to 14 had significantly fewer defecations per week and more urinations per day than control groups of similar age.

不过，5-9组以10-14组患者与对照组相同年龄组相比，其每周排尿量较少，每日排尿量较多，有显著差异。