PT - JOURNAL ARTICLE AU - K Hopayian TI - Snakes and statistics: association does not prove causation. DP - 2000 Jul 01 TA - British Journal of General Practice PG - 578--578 VI - 50 IP - 456 4099 - http://bjgp.org/content/50/456/578.2.short 4100 - http://bjgp.org/content/50/456/578.2.full SO - Br J Gen Pract2000 Jul 01; 50