Curr Opin Obstet Gynecol.
2006 Oct;18(5):487-91.
Pubertal development in girls: secular trends.
Kaplowitz P
http://www.ncbi.nlm.nih.gov/pubmed/16932041Puberty, obesity and ethnicity.
Styne DM.
Trends Endocrinol Metab. 2004 Dec;15(10):472-8. Review
http://www.ncbi.nlm.nih.gov/pubmed/15541646[Age of menarche. Secondary sex characteristics. Interrelation. Secular trend].
Zurlo de Mirotti SM, Lesa AM, Barrón de Carbonetti M.
Rev Fac Cien Med Univ Nac Cordoba. 1995;53 Suppl:7-15. Review. Spanish
http://www.ncbi.nlm.nih.gov/pubmed/8729286Variation in menarcheal age of Assamese girls.
Sengupta S, Gogoi G, Chetry HB.
J Indian Med Assoc. 1996 Mar;94(3):88-90. Review
http://www.ncbi.nlm.nih.gov/pubmed/8810202Age at menarche in Peninsular Malaysia: time trends, ethnic differentials, and association with ages at marriage and at first birth.
Tan Boon Ann, Othman R, Butz WP, Davanzo J.
Malays J Reprod Health. 1983 Dec;1(2):91-108
Early Hum Dev. 2004 Feb;76(2):115-25.
Effects of different socioeconomic conditions on menarche in Turkish female students.
Ersoy B1, Balkan C, Gunay T, Onag A, Egemen A
Racial disparities in pubertal development.
Ramnitz MS, Lodish MB.
Semin Reprod Med. 2013 Sep;31(5):333-9. doi: 10.1055/s-0033-1348891. Epub 2013 Aug 9. Review
http://www.ncbi.nlm.nih.gov/pubmed/23934693Trends in pubertal development in Europe.
de Muinich Keizer SM, Mul D.
Hum Reprod Update. 2001 May-Jun;7(3):287-91. Review FREE
Lessons from large population studies on timing and tempo of puberty (secular trends and relation to body size): the European trend.
Ong KK, Ahmed ML, Dunger DB.
Mol Cell Endocrinol. 2006 Jul 25;254-255:8-12. Epub 2006 Jun 6. Review
http://www.ncbi.nlm.nih.gov/pubmed/16757103The measurement of puberty: a review.
Coleman L, Coleman J.
J Adolesc. 2002 Oct;25(5):535-50. Review
Evolution, development and timing of puberty.
Gluckman PD, Hanson MA.
Trends Endocrinol Metab. 2006 Jan-Feb;17(1):7-12. Epub 2005 Nov 28. Review
Secular trend of timing of puberty.
Delemarre-van de Waal HA.
Endocr Dev. 2005;8:1-14. Review