Reference intervals of trimester-specific thyroid stimulating hormone and free thyroxine in Chinese women established by experimental and statistical methods.
Lican HanWei ZhengYanhong ZhaiXin XieJingnan ZhangShaozu ZhangZhen ZhaoZheng CaoPublished in: Journal of clinical laboratory analysis (2017)
Trimester-specific thyroid function tests RIs are distinct from those provided by assay manufacturers. The RIs determined by direct sampling and Hoffmann indirect calculation showed no statistical difference.