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作者对34名青春期男孩进行了骨龄的研究。开始时平均年龄为10.85岁,标准差为0.26岁。连续观察4～5年(1976～1981)。每4个月记录一次形态测量和青春期分级的结果。每年作左手X线摄片,按Tanner氏等的TW2法评定骨龄。然后将身高和青春期分级的连续
The authors studied bone age in 34 adolescent boys. The average age at the beginning was 10.85 years and the standard deviation was 0.26 years. Continuous observation of 4 to 5 years (1976 ~ 1981). Record the results of morphometry and adolescent grading every 4 months. Left-handed X-ray radiography each year, according to Tanner’s TW2 method such as the assessment of bone age. Then the grading of height and adolescence continuous