PT - JOURNAL ARTICLE AU - Emyr Gravell TI - Safety in numbers DP - 2006 Jun 01 TA - British Journal of General Practice PG - 474--474 VI - 56 IP - 527 4099 - http://bjgp.org/content/56/527/474.short 4100 - http://bjgp.org/content/56/527/474.full SO - Br J Gen Pract2006 Jun 01; 56