Nitrogen fixation is the process by which atmospheric nitrogen is converted either by a natural or an industrial means to a form of nitrogen such as ammonia. In nature, most nitrogen is harvested from the atmosphere by microorganisms (see above) to form ammonia, nitrites, and nitrates that can be used by plants.
A Colonoscopy costs $770 in Columbus when you take the median price of the 40 medical providers who perform Colonoscopy procedures in the Columbus, OH area.
The estimated cost of surveillance colonoscopy for CRC follow up with the proposed guidelines which include a one year post resection colonoscopy is $26,690,230 (2010 Aus $) for a cohort of 7700 patients followed over a period of 14 years and $25,617,823 using the 2005 guidelines for the same period (see table below).