PT - JOURNAL ARTICLE AU - Carl Erik Mabeck AU - René Vejlsgaard TI - Multipractice studies: how representative are the participating doctors? DP - 1980 May 01 TA - The Journal of the Royal College of General Practitioners PG - 285--287 VI - 30 IP - 214 4099 - http://bjgp.org/content/30/214/285.short 4100 - http://bjgp.org/content/30/214/285.full SO - J R Coll Gen Pract1980 May 01; 30 AB - General practitioners participating in a multipractice study were compared with those who refused to participate. We found that younger doctors, doctors in partnerships, and doctors with many patients were represented more among participants. However, no correlation was found between the number of patients examined for urinary tract infection in connection with the study.