Compassionate Care -- One of Memorial Sloan Kettering's experts in gastrointestinal neuroendocrine tumors is Monica Girotra, an endocrinologist. Carcinoid tumors are the most common type of neuroendocrine tumor. An estimated 11,000 to 12,000 people are diagnosed with a carcinoid tumor each year in the United States. About two-thirds of all carcinoid tumors appear in the gastrointestinal system, particularly in the small intestine, rectum, stomach, colon, and liver.
1 Downhill bikes are a specialized type of mountain bike with a very strong frame, altered geometry, and long travel suspension. 2  They are designed for use only on downhill courses. 3  Freeride bicycles in this category usually have very strong frames and dual-suspension with travel of six inches and up.
Home Track Bikes. A track bicycle or track bike is a bicycle optimized for racing at a velodrome or outdoor track. Unlike road bicycles, the track bike is a fixed-gear bicycle and so has a single gear and neither freewheel nor brakes.ixed Gear Bikes that can not be used on for Track Cycling on a Velodrome or Outdoor Track due to the geometry not meeting the requirements of Track Cycling are listed in our Fixie/Singlespeed section here-Fixie/Singlespeed Bikes.