1. 1. Hiralal K, Datta's DC. Text book of Gynaecology. Delhi: Jaypee brothers medical publishers private limited, 2014;6th edn:pp 217.
2. 2. Sciara J. Infertility: an international health problem. int J Gynaecol Obstet 1994;46:155-63. (Pub Med).
3. 3. New Delhi. Population council & infertility. Looking back & looking forward: a profile of sexual and reproductive health in India. 2004;11:67-72.
4. 4. American Urological Association. The optimal evaluation of the infertile male: AUA best practice statement. 2010;03-05.
5. Cytogenetic study in male infertility;Drugkar Amol;IOSR-JDMS,2013