Parathyroid hormone (PTH), also called parathormone or parathyrin, is a hormone secreted by the parathyroid glands that is important in bone remodeling, which is an ongoing process in which bone tissue is alternately resorbed and rebuilt over time. PTH is secreted in response to low blood serum calcium (Ca 2+) levels.
See also: Legionnaires' disease. On July 21, 1976, the American Legion opened its annual three-day convention at the Bellevue-Stratford Hotel in Philadelphia, Pennsylvania. More than 2,000 Legionaires, mostly men, attended the convention.
The America's Center Convention Complex is home to four distinct spaces under one roof: Cervantes Convention Center, The Dome at America's Center, the St. Louis Executive Conference Center and the Ferrara Theatre. In addition the convention center features five exhibit halls, a ballroom and more than 80 meeting rooms.