PT - JOURNAL ARTICLE AU - Milan L Ridderikhof AU - Markus Hollmann TI - In reply:PICO questions in systematic reviews AID - 10.1136/emermed-2020-209587 DP - 2020 Jun 01 TA - Emergency Medicine Journal PG - 386--386 VI - 37 IP - 6 4099 - http://emj.bmj.com/content/37/6/386.short 4100 - http://emj.bmj.com/content/37/6/386.full SO - Emerg Med J2020 Jun 01; 37