PT - JOURNAL ARTICLE AU - R. S. L. Thomas TI - Returning Questionnaires: Who Pays? DP - 1982 Oct 01 TA - The Journal of the Royal College of General Practitioners PG - 645--645 VI - 32 IP - 243 4099 - http://bjgp.org/content/32/243/645.1.short 4100 - http://bjgp.org/content/32/243/645.1.full SO - J R Coll Gen Pract1982 Oct 01; 32