Shane Duignan

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Questions related from Shane Duignan

Is anyone aware of studies or work that has been done on looking at using an Androstenedione based free androgen index?

In our institution, testosterone and androstenedione are measured simultaneously using LC-MS/MS and I have come across patients with clinical signs of androgen excess who have normal testosterone...

04 April 2015 7,096 2 View

What are the main problems associated with measuring testosterone?

The method for measuring testosterone is being switched from immunoassay to liquid chromatography tandem mass spec and I am establishing a new reference range for both sexes as well as the free...

02 February 2015 6,322 3 View