· Harrison's Principles of Internal Medicine, 19e chap. 414: Infertility and Contraception, chap. 411 Disorders of the Testes and Male Reproductive System
· Campbell-Walsh Urology, Eleventh Edition. chap. 24> Male Infertility
· American Society for Reproductive Medicine. Medication for Inducing Ovulation. A Guide for patients revised 2012.
· National Institute for Health and Care Excellence (NICE). Fertility problems: assessment and treatment (CG156) Clinical guideline Published: 20 February 2013 Last updated August 2016
· Song D, Shi Y, Zhong Y. et al. Efficiency of mild ovarian stimulation with clomiphene on poor ovarian responders during IVF/ICSI procedures: a meta-analysis. Eur J Obstet Gynecol Reprod Biol. 2016 Sep;204:36-43.
· Pilehvari S, ShahrokhTehraninejad E, Hosseinrashidi B. Comparison Pregnancy Outcomes Between Minimal Stimulation Protocol and Conventional GnRH Antagonist Protocols in Poor Ovarian Responders. J Family Reprod Health. 2016 Mar;10(1):35-42.
· Hussein Ghanem, Osama Shaeer, Amgad El-Segini. Combination clomiphene citrate and antioxidant therapy for idiopathic male infertility: a randomized controlled trial. Fertility and Sterility 2010;93:2232?5.
· ALAYMAN HUSSEIN et al. Clomiphene Administration for Cases of Nonobstructive Azoospermia: A Multicenter Study. Journal of Andrology, 2005;26:787?791
· Lass A, McVeigh E, et al. Routine use of r-hFSH follitropin alfa filled-by-mass for follicular development for IVF: a large multicentre observational study in the UK. Reprod Biomed Online. 2004 Dec;9(6):604-10.
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· Recombinant versus urinary gonadotrophins for triggering ovulation in assisted conception. Human Reproduction Vol.20, No.8 pp. 2061?2073, 2005