1. Pharmaberater: Für manche Fachmann, für andere Buhmann;H Korzilius;Deutsches Ärzteblatt,2007
2. A Survey of German Physicians in Private Practice About Contacts With Pharmaceutical Sales Representatives;K Lieb;Dtsch Arztebl Int,2010
3. Scientific versus commercial sources of influence on the prescribing behavior of physicians;J Avorn;Am J Med,1982
4. Differential education concerning therapeutics and resultant physician prescribing patterns;MH Becker;J Med Educ,1972
5. Information from Pharmaceutical Companies and the Quality, Quantity, and Cost of Physicians’ Prescribing: A Systematic Review;GK Spurling;PLoS Med,2010