Lead flashing was commonly used on chimneys, around other roof penetrations such as vent pipes, and roof junctions, such as valleys. It is still used for this, but is less common because of its cost, and the availability of alternatives. Modern alternatives: pvc, butyl rubber etc. are often less durable.
Granulocytes, specifically neutrophils, help the body fight bacterial infections. The number of granulocytes in the body usually increases when there is a serious infection. People with a lower number of granulocytes are more likely to develop bad infections more often.
Neupogen and Neulasta (filgrastim and pegfilgrastim) For people on chemo, keeping up the white blood cells, or more specifically neutrophils can sometimes be difficult. Neutrophil granulocytes are part of the immune system and comprise the largest type of white blood cells we have.