Some people with chest pain have normal or minimal narrowing of heart arteries; in these patients, vasospasm is a more likely cause for the pain, sometimes in the context of Prinzmetal's angina and syndrome X.
You are here. Pure Live Seed. Pure live seed (PLS) is a measure used by the seed industry to describe the percentage of a quantity of seed that will germinate. PLS is obtained by multiplying the purity percentage by the percentage of total viable seed, then dividing by 100.
As you pick up germs PureWorks goes to work and kills them immediately before you rub your eye or pick your nose or dig that piece of spinach out of the gap in your front tooth. This persistence is the only way to get long lasting protection and lets you kill germs all day with just a few applications of product.