1. ISO 14971. Medical Devices – Application of Risk Management to Medical Devices;for Standardization, International Organization,2007
2. Patient safety: safer by design;Tonks, A.;BMJ,2008
3. Mistake-proofing the Design of Health Care Processes. AHRQ publication 07-0020;Grout, J.; College, B.; Rome, G.A.,2007
4. Implantable contraception;Darney, P.;Eur J Contracept Reprod Health Care,2000
5. National Collaborating Centre for Women’s and Children’s Health. Long-acting Reversible Contraception (NICE Clinical Guideline CG30). 205;[6 September 2010].