PT - JOURNAL ARTICLE AU - Catherine Saunders AU - Gary Abel TI - Ecological studies: use with caution AID - 10.3399/bjgp14X676979 DP - 2014 Feb 01 TA - British Journal of General Practice PG - 65--66 VI - 64 IP - 619 4099 - http://bjgp.org/content/64/619/65.short 4100 - http://bjgp.org/content/64/619/65.full SO - Br J Gen Pract2014 Feb 01; 64