• Adamopoulos DA, Pappa A., Billa E., Nicopoulou S., Koukkou E., Michopoulos J.. Effectiveness of combined tamoxifen citrate and testosterone undecanoate in men with idiopathic oligozoospermia. Fertil Steril. 2003;80: 914920.
  • Cavallini G., Ferraretti AP, Gianaroli L., Biagiotti G., Vitalli G.. Cinnoxicam and l-carnitine acetyl-l-carnitine treatment for idiopathic and varicocele-associated oligoasthenospermia. J Androl. 2004;25: 761770.
  • Comhaire FH, Mahmoud AMA. Editorial commentary. J Androl. 2004;25: 771772.
  • Comhaire FH, Milingos S., Liapi A., Gordts S., Campo R., Depypere H., Dhont M., Schoonjans F.. The effective cumulative pregnancy rate of different modes of treatment of male infertility. Andrologia. 1995;27: 217221.
  • World Health Organization. WHO Laboratory Manual for the Examination of Human Semen and Sperm-Cervical Mucus Interactions. 4th ed. Cambridge, United Kingdom: Cambridge University Press; 1999.