1. World Health Organisation: The world medicines situations. 2004, Geneva:World Health Organisation
2. Rägo L, Santoso B: Drug Regulation: History, Present and Future. Drug Benefits and Risks: International Textbook of Clinical Pharmacology, revised 2nd edition. Edited by: van Boxtel CJ, Santoso B, Edwards IR. 2008, IOS Press and Uppsala Monitoring Centre
3. NC Drennan, Allen D, Hyde A, Felle P, O'Boyle K, Treacy P, Butler M: Independent Evaluation of the Nurse and Midwife Prescribing Initiative. 2009, Dublin: University College Dublin
4. International Council of Nurses: Trends and issues in nursing: Implementing Nurse Prescribing. 2009, Geneva: International Council of Nursing
5. Zimmerman R, Albert SM, Nowalk MP, Yonas MA, Ahmed F: Use of standing orders for adult influenza vaccination: a national survey of primary care physicians. American Journal of Preventive Medicine. 2011, 40 (2): 144-148. 10.1016/j.amepre.2010.10.027.