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.
During the bicentennial in 1976, american legion members held a convention in philadelphia. Many of them became ill and some died from a previously unknown infectious agent. The culprit in legionaires' disease was a new germ, later named, in honor of the legionaires, legionella pneumophila.. In brief: American Legion. During the bicentennial in 1976, american legion members held a convention in philadelphia.