PT - JOURNAL ARTICLE AU - Roberta Heale AU - Alison Twycross TI - What is a case study? AID - 10.1136/eb-2017-102845 DP - 2018 Jan 01 TA - Evidence Based Nursing PG - 7--8 VI - 21 IP - 1 4099 - http://ebn.bmj.com/content/21/1/7.short 4100 - http://ebn.bmj.com/content/21/1/7.full SO - Evid Based Nurs2018 Jan 01; 21