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  Vol. 142 No. 9, September 2006 TABLE OF CONTENTS
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Uniform Resource Locator Decay in Dermatology Journals

Author Attitudes and Preservation Practices

Jonathan D. Wren, PhD; Kathryn R. Johnson, MD; David M. Crockett; Lauren F. Heilig, BA; Lisa M. Schilling, MD; Robert P. Dellavalle, MD, PhD, MSPH

Arch Dermatol. 2006;142:1147-1152.

Objectives  To describe dermatology journal uniform resource locator (URL) use and persistence and to better understand the level of control and awareness of authors regarding the availability of the URLs they cite.

Design  Software was written to automatically access URLs in articles published between January 1, 1999, and September 30, 2004, in the 3 dermatology journals with the highest scientific impact. Authors of publications with unavailable URLs were surveyed regarding URL content, availability, and preservation.

Main Outcome Measures  Uniform resource locator use and persistence and author opinions and practices.

Results  The percentage of articles containing at least 1 URL increased from 2.3% in 1999 to 13.5% in 2004. Of the 1113 URLs, 81.7% were available (decreasing with time since publication from 89.1% of 2004 URLs to 65.4% of 1999 URLs) (P<.001). Uniform resource locator unavailability was highest in The Journal of Investigative Dermatology (22.1%) and lowest in the Archives of Dermatology (14.8%) (P=.03). Some content was partially recoverable via the Internet Archive for 120 of the 204 unavailable URLs. Most authors (55.2%) agreed that the unavailable URL content was important to the publication, but few controlled URL availability personally (5%) or with the help of others (employees, colleagues, and friends) (6.7%).

Conclusions  Uniform resource locators are increasingly used and lost in dermatology journals. Loss will continue until better preservation policies are adopted.


Author Affiliations: Department of Botany and Microbiology, Advanced Center for Genome Technology, University of Oklahoma, Norman (Dr Wren); Departments of Dermatology (Drs Johnson and Dellavalle and Ms Heilig), Preventive Medicine and Biometrics (Ms Heilig and Dr Schilling), and Medicine (Dr Schilling), University of Colorado at Denver and Health Sciences Center, Aurora; Colorado School of Mines, Golden (Mr Crockett); and Dermatology Service, Department of Veterans Affairs Medical Center, Denver (Dr Dellavalle).



THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

URL decay in MEDLINE--a 4-year follow-up study
Wren
Bioinformatics 2008;24:1381-1385.
ABSTRACT | FULL TEXT  

The Prevalence and Inaccessibility of Internet References in the Biomedical Literature at the Time of Publication
Aronsky et al.
J. Am. Med. Inform. Assoc. 2007;14:232-234.
ABSTRACT | FULL TEXT  





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