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.
Bicycles can be categorized in many different ways: by function, by number of riders, by general construction, by gearing or by means of propulsion. The more common types include utility bicycles, mountain bicycles, racing bicycles, touring bicycles, hybrid bicycles, cruiser bicycles, and BMX bikes. Less common are tandems, low riders, tall bikes, fixed gear, folding models, amphibious bicycles, cargo bikes, recumbents and electric bicycles. Unicycles, tricycles and quadracycles are not strictly bicycles, as they have respectively one, three and four wheels, but are often referred to informally as bikes or cycles.