M. Berbero?lu, Precocious Puberty and Normal Variant Puberty: Definition, etiology, diagnosis and current management, J Clin Res Pediatr Endocrinol, vol.1, issue.4, pp.164-74, 2009.

L. Garel, J. Dubois, A. Grignon, D. Filiatrault, V. Vliet et al., US of the Pediatric Female Pelvis: A Clinical Perspective, RadioGraphics, vol.21, issue.6, pp.1393-407, 2001.
DOI : 10.1148/radiographics.21.6.g01nv041393

M. Badouraki, A. Christoforidis, I. Economou, A. Dimitriadis, and G. Katzos, Sonographic assessment of uterine and ovarian development in normal girls aged 1 to 12 years, Journal of Clinical Ultrasound, vol.82, issue.9, 2008.
DOI : 10.1002/jcu.20522

M. Badouraki, A. Christoforidis, I. Economou, A. Dimitriadis, and G. Katzos, Evaluation of pelvic ultrasonography in the diagnosis and differentiation of various forms of sexual precocity in girls, Ultrasound in Obstetrics and Gynecology, vol.112, issue.6
DOI : 10.1002/uog.6148

H. Haber, H. Wollmann, and M. Ranke, Pelvic ultrasonography: Early differentiation between isolated premature thelarche and central precocious puberty, European Journal of Pediatrics, vol.14, issue.3, pp.182-188, 1995.
DOI : 10.1007/BF01954267

L. Herter, E. Golendziner, J. Flores, M. Moretto, D. Domenico et al., Ovarian and Uterine Findings in Pelvic Sonography, Journal of Ultrasound in Medicine, vol.21, issue.11, pp.1237-1246, 2002.
DOI : 10.7863/jum.2002.21.11.1237

R. Stanhope, J. Adams, H. Jacobs, and C. Brook, Ovarian ultrasound assessment in normal children, idiopathic precocious puberty, and during low dose pulsatile gonadotrophin releasing hormone treatment of hypogonadotrophic hypogonadism., Archives of Disease in Childhood, vol.60, issue.2, pp.116-125, 1985.
DOI : 10.1136/adc.60.2.116

C. Battaglia, F. Mancini, G. Regnani, N. Persico, L. Iughetti et al., Pelvic ultrasound and color Doppler findings in different isosexual precocities, Ultrasound in Obstetrics and Gynecology, vol.13, issue.3, pp.277-83, 2003.
DOI : 10.1002/uog.154

D. Vries, L. Horev, G. Schwartz, M. Phillip, and M. , Ultrasonographic and clinical parameters for early differentiation between precocious puberty and premature thelarche, European Journal of Endocrinology, vol.154, issue.6, pp.891-899, 2006.
DOI : 10.1530/eje.1.02151

A. Eksioglu, S. Yilmaz, S. Cetinkaya, G. Cinar, Y. Yildiz et al., Value of pelvic sonography in the diagnosis of various forms of precocious puberty in girls, Journal of Clinical Ultrasound, vol.21, issue.2, 2013.
DOI : 10.1002/jcu.22004

L. Herter, E. Golendziner, J. Flores, E. Becker, and P. Spritzer, Ovarian and Uterine Sonography in Healthy Girls Between 1 and 13 Years Old: Correlation of Findings with Age and Pubertal Status, American Journal of Roentgenology, vol.178, issue.6
DOI : 10.2214/ajr.178.6.1781531

F. Buzi, A. Pilotta, D. Dordoni, A. Lombardi, S. Zaglio et al., Pelvic ultrasonography in normal girls and in girls with pubertal precocity Acta Paediatr Oslo Nor 1992 Usefulness of ovarian volume and cysts in female isosexual precocious puberty, J Ultrasound Med Off J Am Inst Ultrasound Med, vol.8712, issue.1310, pp.1138-45577, 1993.

N. Bridges, A. Cooke, M. Healy, P. Hindmarsh, and C. Brook, Growth of the uterus., Archives of Disease in Childhood, vol.75, issue.4, pp.330-331, 1996.
DOI : 10.1136/adc.75.4.330

V. Khadilkar, A. Khadilkar, A. Kinare, H. Tapasvi, S. Deshpande et al., Ovarian and uterine ultrasonography in healthy girls between birth to 18 years. Indian Pediatr, 2006.

H. Cohen, P. Eisenberg, F. Mandel, and J. Haller, Ovarian cysts are common in premenarchal girls

S. Salardi, L. Orsini, E. Cacciari, L. Bovicelli, P. Tassoni et al., Pelvic ultrasonography in premenarcheal girls: relation to puberty and sex hormone concentrations., Archives of Disease in Childhood, vol.60, issue.2, 1985.
DOI : 10.1136/adc.60.2.120

H. Haber and E. Mayer, Ultrasound evaluation of uterine and ovarian size from birth to puberty, Pediatric Radiology, vol.89, issue.1
DOI : 10.1007/BF02017650

S. Ivarsson, K. Nilsson, and P. Persson, Ultrasonography of the pelvic organs in prepubertal and postpubertal girls., Archives of Disease in Childhood, vol.58, issue.5, pp.352-356, 1983.
DOI : 10.1136/adc.58.5.352

K. Holm, E. Laursen, V. Brocks, and J. Müller, Pubertal maturation of the internal genitalia: an ultrasound evaluation of 166 healthy girls, Ultrasound in Obstetrics and Gynecology, vol.6, issue.3, pp.175-81, 1995.
DOI : 10.1046/j.1469-0705.1995.06030175.x

F. Ziereisen, C. Heinrichs, D. Dufour, M. Saerens, and E. Avni, The role of Doppler evaluation of the uterine artery in girls around puberty, Pediatric Radiology, vol.31, issue.10, pp.712-721, 2001.
DOI : 10.1007/s002470100463

E. Laursen, K. Holm, V. Brocks, M. Jarden, and J. Müller, Doppler assessment of flow velocity in the uterine artery during pubertal maturation, Ultrasound in Obstetrics and Gynecology, vol.8, issue.5, pp.341-346, 1996.
DOI : 10.1046/j.1469-0705.1996.08050341.x

Z. Orbak, N. Sa?söz, H. Alp, H. Tan, H. Yildirim et al., Pelvic Ultrasound Measurements in Normal Girls: Relation to Puberty and Sex Hormone Concentration, Journal of Pediatric Endocrinology and Metabolism, vol.11, issue.4, pp.525-555, 1998.
DOI : 10.1515/JPEM.1998.11.4.525

L. Orsini, S. Salardi, G. Pilu, L. Bovicelli, and E. Cacciari, Pelvic organs in premenarcheal girls: realtime ultrasonography. Radiology, pp.113-119, 1984.

N. Bridges, A. Cooke, M. Healy, P. Hindmarsh, and C. Brook, Standards for ovarian volume in childhood and puberty**Presented at the 12th meeting of the British Endocrine Societies, Liverpool, United Kingdom March 29 to April 1, 1992., Fertility and Sterility, vol.60, issue.3, pp.456-60, 1993.
DOI : 10.1016/S0015-0282(16)56160-3

O. Pescovitz, K. Hench, K. Barnes, D. Loriaux, and G. Cutler, Premature Thelarche and Central Precocious Puberty: The Relationship Between Clinical Presentation and the Gonadotropin Response to Luteinizing Hormone-Releasing Hormone, The Journal of Clinical Endocrinology & Metabolism, vol.67, issue.3, pp.474-483, 1988.
DOI : 10.1210/jcem-67-3-474

P. Yazdani, Y. Lin, V. Raman, and M. Haymond, A single sample GnRHa stimulation test in the diagnosis of precocious puberty Unsustained or slowly progressive puberty in young girls: initial presentation and long-term follow-up of 20 untreated patients, Int J Pediatr Endocrinol. J Clin Endocrinol Metab, vol.2012, issue.1, 1999.

E. Neely, D. Wilson, P. Lee, M. Stene, R. Hintz et al., Spontaneous serum gonadotropin concentrations in the evaluation of precocious puberty Pelvic ultrasonography in pubertal girls, J Pediatr. Indian J Pediatr, vol.12769, issue.3010, pp.47-52869, 1995.

I. Griffin, T. Cole, K. Duncan, A. Hollman, and M. Donaldson, Pelvic ultrasound measurements in normal girls, Acta Paediatrica, vol.63, issue.5, pp.536-579, 1992.
DOI : 10.1016/S0300-595X(78)80005-X

S. Salardi, L. Orsini, E. Cacciari, S. Partesotti, L. Brondelli et al., Pelvic ultrasonography in girls with precocious puberty, congenital adrenal hyperplasia, obsesity, or hirsutism, The Journal of Pediatrics, vol.112, issue.6, pp.880-887, 1988.
DOI : 10.1016/S0022-3476(88)80208-7

L. Garel, J. Dubois, A. Grignon, D. Filiatrault, V. Vliet et al., US of the Pediatric Female Pelvis: A Clinical Perspective, RadioGraphics, vol.21, issue.6, pp.1393-407, 2001.
DOI : 10.1148/radiographics.21.6.g01nv041393

M. Badouraki, A. Christoforidis, I. Economou, A. Dimitriadis, and G. Katzos, Sonographic assessment of uterine and ovarian development in normal girls aged 1 to 12 years, Journal of Clinical Ultrasound, vol.82, issue.9, 2008.
DOI : 10.1002/jcu.20522

M. Badouraki, A. Christoforidis, I. Economou, A. Dimitriadis, and G. Katzos, Evaluation of pelvic ultrasonography in the diagnosis and differentiation of various forms of sexual precocity in girls, Ultrasound in Obstetrics and Gynecology, vol.112, issue.6
DOI : 10.1002/uog.6148

H. Haber, H. Wollmann, and M. Ranke, Pelvic ultrasonography: Early differentiation between isolated premature thelarche and central precocious puberty, European Journal of Pediatrics, vol.14, issue.3, pp.182-188, 1995.
DOI : 10.1007/BF01954267

L. Herter, E. Golendziner, J. Flores, M. Moretto, D. Domenico et al., Ovarian and Uterine Findings in Pelvic Sonography, Journal of Ultrasound in Medicine, vol.21, issue.11, pp.1237-1246, 2002.
DOI : 10.7863/jum.2002.21.11.1237

R. Stanhope, J. Adams, H. Jacobs, and C. Brook, Ovarian ultrasound assessment in normal children, idiopathic precocious puberty, and during low dose pulsatile gonadotrophin releasing hormone treatment of hypogonadotrophic hypogonadism., Archives of Disease in Childhood, vol.60, issue.2, pp.116-125, 1985.
DOI : 10.1136/adc.60.2.116

C. Battaglia, F. Mancini, G. Regnani, N. Persico, L. Iughetti et al., Pelvic ultrasound and color Doppler findings in different isosexual precocities, Ultrasound in Obstetrics and Gynecology, vol.13, issue.3, pp.277-83, 2003.
DOI : 10.1002/uog.154

D. Vries, L. Horev, G. Schwartz, M. Phillip, and M. , Ultrasonographic and clinical parameters for early differentiation between precocious puberty and premature thelarche, European Journal of Endocrinology, vol.154, issue.6, pp.891-899, 2006.
DOI : 10.1530/eje.1.02151

A. Eksioglu, S. Yilmaz, S. Cetinkaya, G. Cinar, Y. Yildiz et al., Value of pelvic sonography in the diagnosis of various forms of precocious puberty in girls, Journal of Clinical Ultrasound, vol.21, issue.2, 2013.
DOI : 10.1002/jcu.22004

L. Herter, E. Golendziner, J. Flores, E. Becker, and P. Spritzer, Ovarian and Uterine Sonography in Healthy Girls Between 1 and 13 Years Old: Correlation of Findings with Age and Pubertal Status, American Journal of Roentgenology, vol.178, issue.6, pp.1531-1537, 2002.
DOI : 10.2214/ajr.178.6.1781531

F. Buzi, A. Pilotta, D. Dordoni, A. Lombardi, S. Zaglio et al., Pelvic ultrasonography in normal girls and in girls with pubertal precocity Acta Paediatr Oslo Nor 1992 Usefulness of ovarian volume and cysts in female isosexual precocious puberty, J Ultrasound Med Off J Am Inst Ultrasound Med, vol.8712, issue.1310, pp.1138-45577, 1993.

N. Bridges, A. Cooke, M. Healy, P. Hindmarsh, and C. Brook, Growth of the uterus., Archives of Disease in Childhood, vol.75, issue.4, pp.330-331, 1996.
DOI : 10.1136/adc.75.4.330

V. Khadilkar, A. Khadilkar, A. Kinare, H. Tapasvi, S. Deshpande et al., Ovarian and uterine ultrasonography in healthy girls between birth to 18 years. Indian Pediatr, 2006.

H. Cohen, P. Eisenberg, F. Mandel, and J. Haller, Ovarian cysts are common in premenarchal girls: a sonographic study of 101 children 2-12 years old., American Journal of Roentgenology, vol.159, issue.1, pp.89-91, 1992.
DOI : 10.2214/ajr.159.1.1609728

S. Salardi, L. Orsini, E. Cacciari, L. Bovicelli, P. Tassoni et al., Pelvic ultrasonography in premenarcheal girls: relation to puberty and sex hormone concentrations., Archives of Disease in Childhood, vol.60, issue.2, 1985.
DOI : 10.1136/adc.60.2.120

H. Haber and E. Mayer, Ultrasound evaluation of uterine and ovarian size from birth to puberty, Pediatric Radiology, vol.89, issue.1
DOI : 10.1007/BF02017650

S. Ivarsson, K. Nilsson, and P. Persson, Ultrasonography of the pelvic organs in prepubertal and postpubertal girls., Archives of Disease in Childhood, vol.58, issue.5, pp.352-356, 1983.
DOI : 10.1136/adc.58.5.352

K. Holm, E. Laursen, V. Brocks, and J. Müller, Pubertal maturation of the internal genitalia: an ultrasound evaluation of 166 healthy girls, Ultrasound in Obstetrics and Gynecology, vol.6, issue.3, pp.175-81, 1995.
DOI : 10.1046/j.1469-0705.1995.06030175.x

F. Ziereisen, C. Heinrichs, D. Dufour, M. Saerens, and E. Avni, The role of Doppler evaluation of the uterine artery in girls around puberty, Pediatric Radiology, vol.31, issue.10, pp.712-721, 2001.
DOI : 10.1007/s002470100463

E. Laursen, K. Holm, V. Brocks, M. Jarden, and J. Müller, Doppler assessment of flow velocity in the uterine artery during pubertal maturation, Ultrasound in Obstetrics and Gynecology, vol.8, issue.5, pp.341-346, 1996.
DOI : 10.1046/j.1469-0705.1996.08050341.x

Z. Orbak, N. Sa?söz, H. Alp, H. Tan, H. Yildirim et al., Pelvic Ultrasound Measurements in Normal Girls: Relation to Puberty and Sex Hormone Concentration, Journal of Pediatric Endocrinology and Metabolism, vol.11, issue.4, pp.525-555, 1998.
DOI : 10.1515/JPEM.1998.11.4.525

L. Orsini, S. Salardi, G. Pilu, L. Bovicelli, and E. Cacciari, Pelvic organs in premenarcheal girls: realtime ultrasonography. Radiology, pp.113-119, 1984.

N. Bridges, A. Cooke, M. Healy, P. Hindmarsh, and C. Brook, Standards for ovarian volume in childhood and puberty**Presented at the 12th meeting of the British Endocrine Societies, Liverpool, United Kingdom March 29 to April 1, 1992., Fertility and Sterility, vol.60, issue.3, pp.456-60, 1993.
DOI : 10.1016/S0015-0282(16)56160-3

O. Pescovitz, K. Hench, K. Barnes, D. Loriaux, and G. Cutler, Premature Thelarche and Central Precocious Puberty: The Relationship Between Clinical Presentation and the Gonadotropin Response to Luteinizing Hormone-Releasing Hormone, The Journal of Clinical Endocrinology & Metabolism, vol.67, issue.3, pp.474-483, 1988.
DOI : 10.1210/jcem-67-3-474

P. Yazdani, Y. Lin, V. Raman, and M. Haymond, A single sample GnRHa stimulation test in the diagnosis of precocious puberty Unsustained or slowly progressive puberty in young girls: initial presentation and long-term follow-up of 20 untreated patients, Int J Pediatr Endocrinol. J Clin Endocrinol Metab, vol.2012, issue.1, 1999.

E. Neely, D. Wilson, P. Lee, M. Stene, R. Hintz et al., Spontaneous serum gonadotropin concentrations in the evaluation of precocious puberty Pelvic ultrasonography in pubertal girls, J Pediatr. Indian J Pediatr, vol.12769, issue.3010, pp.47-52869, 1995.

I. Griffin, T. Cole, K. Duncan, A. Hollman, and M. Donaldson, Pelvic ultrasound measurements in normal girls, Acta Paediatrica, vol.63, issue.5, pp.536-579, 1992.
DOI : 10.1016/S0300-595X(78)80005-X

S. Salardi, L. Orsini, E. Cacciari, S. Partesotti, L. Brondelli et al., Pelvic ultrasonography in girls with precocious puberty, congenital adrenal hyperplasia, obsesity, or hirsutism, The Journal of Pediatrics, vol.112, issue.6, pp.880-887, 1988.
DOI : 10.1016/S0022-3476(88)80208-7