introduction: web citations (urls) are at risk of decay and can be easily fade because of the variable and unstable nature of the internet. so, the purpose of this research was to assess web citation accessibility and decay of articles published in journal of the medical library association (jmla). methods: in this applied– descriptive study, jmla articles (231) in a seven year period (from 200...

BACKGROUND PubMed is the most widely used method for searches of the medical literature, but fails to identify many relevant articles. Electronic citation tracking offers an alternative search method. METHODS Articles investigating the role of depression in the aetiology and prognosis of coronary heart disease were sought through two methods: a) PubMed, and b) citation tracking where Science ...