3Klein KO, Mericq V, Brown DJ, et al. Estrogen levels in girls with premature thelarche compared with normal prepubertal girls as determined by an ultrasensitive recombinant cell bioassay. J Pediatr, 1999,134:190-192.
4Styne DM. New aspects in the diagnosis and treatment of pubertal disorders. Pediatr Clin North Am, 1997,44:505-529.
5Beltins IZ, Padmanabham V. Bioactivity of gonadotropins. Endocrinol Metab Clin North Am, 1991,20:85-120.
6Aritaki S, Takagi A, Someya H, et al. A comparison of patients with premature thelarche and idoipathic true precocious puberty in the initial stage of illness. Acta Paediatr Jpn, 1997,39:21-27.
7Pescovitz OH, Hemch KD, Barnes KM, et al. Premature thelarche and central precocious puberty: the relationship between clinical presentation and the gonadotropin respond to luteinizing hormone releasing hormone. J Clin Endocrinol Metab, 1988,67:474-479.
8Salardi S, Cacciari E, Mainetti B, et al. Outcome of premature thelarche: relation to puberty and final height. Arch Dis Child, 1998,79:173-174.
9Li MH, Hansen LD. Enzyme induction and acute endocrine effects in prepubertal female rats receiving environmental PCB/PCDF/PCDD mixtures. Environ Health Perspectives, 1996,104:712-722.
10Hauspie RC, Vercauteren M, Susanne C. Secular changes in growth and maturation: an update. Acta Paediatr Suppl, 1997,423:20-27.
9Bona G,Marinello D.Precocious puberty in immigrant children:indi- cations for treatment[J].Pediatr Endocrine Metab,2000,13(1):831- 834.
10Teilmann G, Pedersen C B, Jensen T K, et al.Prevalence and lnci-dence of Precocious Pubertal Development in Denmark: An Epi- demiologic Study Based on National Registries [J].Pediatrics 2005,116:1323.
