%0杂志文章%@ 1438- 8871% I Gunther Eysenbach %V 4% N 2% P e10% T他们现在在哪里?健康相关网站减损案例研究%A Veronin,Michael药学系，德克萨斯理工大学健康科学中心药学院，阿马里洛，美国，veronin@ttuhsc.edu %K万维网%K健康相关网站%K减损%K互联网档案%K网站质量%D 2002 %7 22.11.2002 %9短文%J J医学互联网资源%G英文%X背景。:在考虑与健康相关的网站时，质量问题通常集中在Web内容上。很少有人关心网站的流失或万维网上健康信息的“短暂性”。由于Web站点可能在一段不确定的时间内可用，因此Web页面可能不是可靠的参考。目标。:为了解决人员流失的问题，研究人员在两个不同的时间间隔内检查了一组确定的与健康相关的网站。方法。:为了确定流失的程度，从以前的研究中获得和记录的网站在大约三年后被重新访问。从1998年12月到1999年5月，收集了184个网站，从中确定了健康声明。在2002年5月和6月期间，将先前为每个网站记录的URL输入到浏览器Netscape Navigator的地址字段中。 It was documented whether the original Web site could not be found, moved to a different URL location, or the URL and site location was found unchanged from the original search. For a Web site whose URL remained unchanged, it was also noted whether the site had maintained currency, (i.e. updated) since the original posting. To ensure that inaccessibility may not be due to temporary server problems, another attempt was made to access the sites at different periods of time. Results.: When each URL address from the original set of 184 Web sites was re-entered into the address field of the browser, 108 (59%) of the sites could not be found, 31 (17%) had moved to a new URL address, and 45 (24%) of the sites could be found from the original URLs obtained in the previous study. Of the Web sites that moved to a new URL address, 7 sites provided a link from the original URL to redirect the viewer to the new location. Of the Web sites still in existence, 17 (38%) provided update information from the original posting. Conclusions.: It can be difficult to locate information that was previously found on the Web, and if a reference to an item is provided, there is no guarantee that viewers will be able to find the site at a later time. Enhancements in Web technologies such as the Internet Archive may improve this situation. Future research that is directed toward making sure Web site viewers know the site will be accessible at a later time will enhance the Web as a valuable medical information resource. %M 12554557 %R 10.2196/jmir.4.2.e10 %U //www.mybigtv.com/2002/2/e10/ %U https://doi.org/10.2196/jmir.4.2.e10 %U http://www.ncbi.nlm.nih.gov/pubmed/12554557