PT - JOURNAL ARTICLE AU - A Juche AU - U Euler AU - B Brüggenjürgen AU - S N Willich AU - R Kunz TI - External research service with critical appraisal of the medical literature at a university medical centre AID - 10.1136/qhc.11.3.297 DP - 2002 Sep 01 TA - Quality and Safety in Health Care PG - 297--297 VI - 11 IP - 3 4099 - http://qualitysafety.bmj.com/content/11/3/297.1.short 4100 - http://qualitysafety.bmj.com/content/11/3/297.1.full SO - Qual Saf Health Care2002 Sep 01; 11