PT - JOURNAL ARTICLE AU - McDonald, P TI - Response rates in general practice studies. DP - 1993 Nov 01 TA - British Journal of General Practice PG - 484--484 VI - 43 IP - 376 4099 - http://bjgp.org/content/43/376/484.1.short 4100 - http://bjgp.org/content/43/376/484.1.full SO - Br J Gen Pract1993 Nov 01; 43