1. Growth at Adolescence;Tanner,1962
2. Amenorrhea, Clinical Gynecologic Endocrinology and Infertility;Speroff,1989
3. Height and weight at menarche and a hypothesis of menarche;Frische;Arch Dis Child,1971
4. Jones HW Jr, Jones GS: Amenorrhea, Novak's Textbook of Gynecology. Baltimore, Williams and Wilkins, pp 733–776
5. Primary amenorrhea: a study of 101 cases;Philip;Fertil Steril,1965