2Soldin O P,Tractenberg R E,Hollowell J G,et al.Trimester-specific changes in maternal thyroid hormone,thyrotropin,and thyroglobulin concentrations during gestation:trends and associations across trimesters in iodine sufficiency[J].Thyroid,2004,14(12):1084-1090.
3Dhatt G S,Jayasundaram R,Wareth L A,et al.Thyrotrophin and free thyroxine trimester specific reference intervals in a mixed ethnic pregnant population in the United Arab Emirates[J].Clin Chim Acta,2006,370(1-2):147-151.
4Mandel S J,Spencer C A,Hollowell J G.Are detection and treatment of thyroid insufficiency in pregnancy feasible?[J].Thyroid,2005,1(51):44-53.
5Kooistra L,Crawford S,Van Baar A L,et al.Neonatal effects of maternal hypothyroxinemia during early pregnancy[J].Pediatrics,2006,117(1):161-167.
