1. Breast and gynecologic disorders;Greydanus,1997
2. Menstrual disorders in adolescents;Greydanus,2009
3. Endocrinology;Draznin,2006
4. Puberty, normal, and menarche;Kaplowitz,2008
5. Pubertal development in girls: secular trends;Kaplowitz;Curr Opin Obstet Gynecol,2006