Keytruda is given by intravenous (IV) infusion every 3 weeks until disease progression, unacceptable toxicity, or up to 24 months. It is currently a non-preferred brand, specialty medication on standard NPS formularies and carries an average wholesale price (AWP) of $515.79 per day. FDA Safety Update
Tears come from the lacrimal gland. And it's found in the outer part of the upper eye. When excess tears are produced, they drain into small ducts to the nasal cavity. And if you have too many tears to drain, they'll spill out of your eyes. There's an anatomical reason why crying makes your nose run.
Where Does Light Come From? Most people know where light comes from. It comes from the sun, from light bulbs, from televisions, but why it comes from these objects is a mystery to many. No matter what the source, light is generally produced via the same mechanism: electrons changing their orbits around nuclei. How does this work?