PT - JOURNAL ARTICLE AU - Battles, J B TI - Patient safety: research methods for a new field AID - 10.1136/qhc.12.suppl_2.ii1 DP - 2003 Dec 01 TA - Quality and Safety in Health Care PG - ii1--ii1 VI - 12 IP - suppl 2 4099 - http://qualitysafety.bmj.com/content/12/suppl_2/ii1.short 4100 - http://qualitysafety.bmj.com/content/12/suppl_2/ii1.full SO - Qual Saf Health Care2003 Dec 01; 12