Objective To compare three assessment methods(TW2,TW2CH,and TW3) for carpal bone age and their potential applications in diagnosis of idiopathic precocious puberty(IPP) in Chinese girls.

• 目的比较TW2法英国人标准、TW2法中国人南方标准和TW3法测定腕骨骨龄对特发性性早熟(IPP)女孩的诊断价值。