Using modern platelet aggregometers, it is possible to evaluate platelet secretion simultaneously, by measuring release of ATP by the aggregating platelets. Measurement of platelet secretion allows the laboratory diagnosis of secretion defects with greater sensitivity than platelet aggregation testing alone.
Windows XP has long been an OS Microsoft begrudgingly kept alive far longer than it could have ever imagined. Initially released in 2001, official support for Windows XP persisted all the way through April 2014. At the time, Microsoft noted that after 13 years of support, it was time for the company to look forward, unencumbered by outdated software.
Windows Vista Release Date. Windows Vista was released to manufacturing on November 8, 2006 and made available to the public for purchase on January 30, 2007. Windows Vista is preceded by Windows XP, and succeeded by Windows 7. The most recent version of Windows is Windows 10, released on July 29, 2015.