World Health Organization. (2012). WHO guidelines on the pharmacological treatment of persisting pain in children with medical illness. World Health Organization.
Cita Chicago (17th ed.)World Health Organization. WHO Guidelines on the Pharmacological Treatment of Persisting Pain in Children with Medical Illness. Geneva, Switzerland: World Health Organization, 2012.
Cita MLA (8th ed.)World Health Organization. WHO Guidelines on the Pharmacological Treatment of Persisting Pain in Children with Medical Illness. World Health Organization, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.