A 'B symptom' is a general symptom that, when combined with other symptoms, often preceeds the diagnosis of lymphoma. Primary B symptoms include the following, and in order to be considered B symptoms, they generally must persist for at least six months: Unexplained low-grade fevers. Drenching lymphoma night sweats.
Propane: Liquefied Petroleum Gas (LPG). Propane, or liquefied petroleum gas (LPG), is a clean-burning fossil fuel that can be used to power internal combustion engines. LPG-fueled vehicles can produce significantly lower amounts of some harmful emissions and the greenhouse gas carbon dioxide (CO 2). LPG is usually less expensive than gasoline, it can be used without degrading vehicle performance, and most LPG used in U.S. comes from domestic sources. The availability of LPG-fueled light-duty passenger vehicles is currently limited.
Propane itself isn't alien, rather it is a byproduct of the same natural gas that flows through most homes and businesses throughout the world. It is a product of natural gas processing and petroleum refining. The type of fuel used in these units is known as LP or LPG (liquid petroleum gas), a hybrid mixture of butane and propane. You needn't be afraid of using a gas heating in your home or business. Propane is widely used as a fuel source to power many household necessities, such as water heaters, laundry dryers, furnaces, stoves, and many other appliances.