1. Epidemiology of menstrual disorder in developing countries: a systematic review;SD;Br J Obstet Gynaecol,2004
2. [2] Wateraid.org. Module one: Menstrual Hygiene Basics. 2012. [Last accessed on 2014 Aug 09].
3. [3] French L. Dysmenorrhoea. American Family Physician 2005;71(2):285-91.
4. [4] Henderson CW. ACOG issues guidelines on diagnosis and treatment of PMS. Women's Health Weekly 2005;5(6):20-2.
5. Treatment with essential fatty acids;Cerin;Acta Obstet Gynecol Scand,1993