Accelerate is managed by the UCSF Clinical and Translational Science Institute (CTSI), part of the Clinical and Translational Science Award program funded by the National Center for Advancing Translational Sciences (Grant Number UL1 TR000004) at the National Institutes of Health (NIH).
Each one can produce a stone. A kidney stone is a solid mass made up of tiny crystals from the minerals calcium, oxalate and uric acid. Gallstones are hard, pebble-like cholesterol or pigment deposits that form inside the gallbladder. They can be as small as a grain of sand or as large as a golf ball.
About Kidney Stones. A kidney stone is a hard mass that occurs when calcium oxalate or other chemicals in the urine form crystals that stick together. These crystals may grow into stones ranging in size from a grain of sand to a golf ball. Some one million Americans--the majority between the ages of 20 and 40--are treated each year for kidney stones.