At the field level, the highest cadre of workers ensured the safety of the intake forms, and emphasis was placed on not recording unique identifier information.
This format has inherent limitations with respect to maintaining and accurately recording unique identifiers that can link patients across the different clinics (antenatal, delivery, child), and also poses challenges when compiling aggregate data.
They recorded the unique Antarctic BW29 signal more than 1000 times, during 14 separate recordings.
On Tuesday, the paper's website recorded 120,000 unique users.
Its stablemate Times Online recorded 20,930,751 unique users in November.
Even this March it still recorded 11.5m unique users - though that had been falling fast, down from 18.9m in October 2008.
According to NetRatings' stats, YouTube recorded 51.3m unique users during June 2007, Google Video 17,8m, AOL, 15.7m and Yahoo Video 15.5m.
Mirror Group Digital's network of sites, which includes Mirror.co.uk, recorded 9,702,760 unique users last month, a fall of 8.73% month on month.
In 2010, Goya recorded one million unique visitors — 87 percent on the English-language site and 13 percent on the Spanish site.
Its stablemate Times Online recorded 19,854,510 unique users in December, a fall of 5.14% month on month and a rise of 4% year on year.
