External Validation of the STONE Score, a Clinical Prediction Rule for Ureteral Stone: An Observational Multi-institutional Study

. Author manuscript; available in PMC: 2016 Apr 1.

Published in final edited form as: Ann Emerg Med. 2015 Oct 3;67(4):423–432.e2. doi: 10.1016/j.annemergmed.2015.08.019

Figure 1.