PT - JOURNAL ARTICLE AU - Weber, Ellen J AU - Carlton, Edward W TI - Side effects of decision rules, or the law of unintended consequences AID - 10.1136/emermed-2018-208151 DP - 2019 Jan 01 TA - Emergency Medicine Journal PG - 2--3 VI - 36 IP - 1 4099 - http://emj.bmj.com/content/36/1/2.short 4100 - http://emj.bmj.com/content/36/1/2.full SO - Emerg Med J2019 Jan 01; 36