1. AHRQ (Agency for Healthcare Research and Quality) 2011 National HealthCare Quality Report 2011 http://www.ahrq.gov/research/findings/nhqrdr/index.html
2. AMA/PCPI (American Medical Association/Physician Consortium for Performance Improvement) 2011 Oncology Performance Measurement Set http://www.ama-assn.org/ama1/pub/upload/mm/pcpi/oncology-worksheets.pdf
3. AQUA (Institut für Angewandte Qualitätsforschung) 2011 Hausärztliche Palliativversorgung http://www.aok-gesundheitspartner.de/bund/qisa/themen/index_04883.html
4. ASCO/QOPI (American Society of Clinical Oncology/Quality Oncology Practice Initiative) 2011 http://qopi.asco.org/Methodology.htm