Serum-separating tube Serum-separating tube Serum-separating tubes, also known as serum separator tubes or SSTs, are used in medical clinical chemistry tests requiring blood serum. SSTs are sometimes called "marble-top tubes," "tiger-tops," or "gold-topped tubes", referring to the stoppers which are either gold, red with a gold ring on top, or marbled red and grey. Marble-top tubes are also referred to as "tiger-tops" in some clinics. SPS tubes have a paler colour, sometimes leading confusion; these are known as "yellow tops" not "gold". Trademarked versions include Covidien "Corvac" tubes. They contain a special gel that separates blood cells from serum, as well as
Blood, Sweat and Stanley Poole Blood, Sweat and Stanley Poole Blood, Sweat and Stanley Poole is a 1961 play by William Goldman and James Goldman. Both Goldman brothers had served in the army and the play is about a supply sergeant at an army post in the south. William Goldman later recalled "we had both been in the army at the same time and it seemed like a decent enough idea and magically we got it on." William and James Goldman had been permitted to serve together in the army in 1955. They were stationed with the 101th Airborne division. The Goldman brothers had received