Figure 1From: Prevalence and prognosis of non-specific chest pain among patients hospitalized for suspected acute coronary syndrome - a systematic literature search 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.Back to article page