HIT is caused by the formation of abnormal antibodies that activate platelets. If someone receiving heparin develops new or worsening thrombosis, or if the platelet count falls, HIT can be confirmed with specific blood tests.
For other uses, see Disneyland (disambiguation). Disneyland Park, originally Disneyland, is the first of two theme parks built at the Disneyland Resort in Anaheim, California, opened on July 17, 1955. It is the only theme park designed and built under the direct supervision of Walt Disney.
Magic Kingdom was the first theme park to open in the complex, in 1971, followed by Epcot in 1982, Hollywood Studios in 1989, and the most recent, Animal Kingdom in 1998. Designed to supplement Disneyland in Anaheim, California, which had opened in 1955, the complex was developed by Walt Disney in the 1960s.