Figure 1.

Selection of studies Flow of information obtained from a systematic search of four databases (PUBMED, MEDLINE, EMBASE and PsycINFO) with addition of citations identified through other sources, and presentation of full text articles that have been evaluated and excluded for predefined reasons. ACS, acute coronary syndrome; NSCP, non-specific chest pain.

Ruddox et al. BMC Medicine 2012 10:58   doi:10.1186/1741-7015-10-58
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