1. Muller CH. The andrology laboratory in an assisted reproductive technology program: quality assurance and laboratory methodology. J Androl. 1992;13:349–60.
2. Keel BA. Quality control, quality assurance, and proficiency testing in the andrology laboratory. Arch Androl. 2002;48:417–31.
3. Mortimer D. Technician training and quality control aspects. In: Practical laboratory andrology. Chapter 16. Oxford: Oxford University Press; 1994. pp. 337–348.
4. Mortimer D, Mortimer ST. Quality and risk management in the IVF laboratory. Cambridge: Cambridge University Press; 2005.
5. World Health Organization (WHO). Chapter 7. Quality assurance and quality control. In: WHO laboratory manual for the examination and processing of human semen. Geneva: World Health Organization; 2010.