PT - JOURNAL ARTICLE AU - T Marshall TI - How many tonsillectomies are based on evidence from randomized controlled trials? DP - 1999 Jun 01 TA - British Journal of General Practice PG - 487--488 VI - 49 IP - 443 4099 - http://bjgp.org/content/49/443/487.short 4100 - http://bjgp.org/content/49/443/487.full SO - Br J Gen Pract1999 Jun 01; 49