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Table 1 Link decay has been studied for several years in specific subject areas.

From: A cross disciplinary study of link decay and the effectiveness of mitigation techniques

Field Links Source/Type Year(s) of URLs N Reference
Biology & Medicine Science curriculum web links 2000 515 [24]
  Full text of 3 dermatology journals 1999-2004 1113 [11]
  Sample of bibliographies being published on PubMed 2006 840 [2]
  References made in the Annals of Emergency Medicine 2000, 2003, 2005 586 [25]
  References in 5 biomedical informatics journals. 1999-2004 1049 [26]
  MEDLINE titles & abstracts 1994-2006 10208 [1]*
  Internet citations in 5 health care management journals from 2002-2004 2009-2010 2011 [14]
  MEDLINE abstracts 1995-2007 7462 [3]*
Communications Citations appearing in research articles in 6 leading communications journals 2000-2003 1600 [27]
Ecology URLs appearing in the full text of 4 Ecological Society of America journals 1997-2005 2100 [28]
Law Samples from a collection of born-digital law- and policy-related reports and documents 2007-2010 2372 [29]
Library/Information Science Citations appearing in 3 leading Information Science journals 1997-2003 2516 [30]
  Sample of citations appearing in library and information science journals 1999-2000 500 [18]
Social Sciences URLs appearing in the full text of 2 well-respected historical journals 1999-2006 510 [31]
  Citations from articles in the Chinese Social Sciences Index 1998-2007 44973 [5]*
Various Random Collection of web URLs 1996 371 [15, 17]
Various Citations in 3 highly circulated journals 2002-2003 672 [32]
Various Supplementary information published in 6 top-cited journals 2000, 2003 585 [33]
Various Citations from conference articles 1995-2003 1068 [34]
Various Collections     [3538]
  1. * denotes studies most similar to the current.