For tumors affecting the bottom half of the bile duct, the cancer is removed with a Whipple operation. For tumors in the top half of the bile duct, surgical treatment often requires removal of the tumor together with a liver resection (removal) in an attempt to provide a surgical cure.
How long for plastic water bottle to decompose? An average time for a plastic bottle to biodegrade fully is approximately 450-1000 years. However, there are many different kinds of plastic in the world, most commonly the haâ¦rd and reusable ones, which take a longer time, and the soft and non-reusable ones, which take a shorter time.
In normal conditions, pure water filled in a bottle lasts for 4-8 hours. If it is refrigerated, it can last up to 4-5 days. Once you open the sealed bottled water, it lasts not more than 4-8 hours. That depends on upon what condition and environment you are into.