Flynn M A, Clark J, Reid J C, Chase G
Pediatr Res. 1975 Nov;9(11):834-6. doi: 10.1203/00006450-197511000-00006.
Most investigators studying changes in body composition during growth agree to the desirability of having longitudinal data. A group of 110 boys and 126 girls, studied annually for 4-5 years with 880 measurements of total body K in a 2pi liquid scintillation whole body counter, had total body K vs. height and total body K vs. weight data that fit previously described regression lines.
大多数研究生长过程中身体成分变化的研究者都认同获取纵向数据的必要性。一组110名男孩和126名女孩，连续4至5年每年进行研究，使用2π液体闪烁全身计数器对全身钾进行了880次测量，得到了全身钾与身高以及全身钾与体重的数据，这些数据符合先前描述的回归线。
