PT - JOURNAL ARTICLE AU - Ann Cartwright TI - RESEARCH METHODS IN GENERAL PRACTICE DP - 1991 Jul 01 TA - British Journal of General Practice PG - 306--306 VI - 41 IP - 348 4099 - http://bjgp.org/content/41/348/306.1.short 4100 - http://bjgp.org/content/41/348/306.1.full SO - Br J Gen Pract1991 Jul 01; 41