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the time, Microsoft noted that after 13 years of support, it was time for the company to look forward, unencumbered by outdated software.
The first independent version of Microsoft Windows, version 1.0, released on 20 November 1985, achieved little popularity. It was originally going to be called Interface Manager but Rowland Hanson, the head of marketing at Microsoft, convinced the company that the name Windows would be more appealing to customers.