FOR PATIENTS. 1  Because patients and their families use test results to make life saving medical decisions, Myriad promises to provide affordable access to testing, lifetime commitment to accurate results, and comprehensive support for ALL appropriate patients and their families.
Delavan Township, Tazewell County, Illinois. Delavan Township is located in Tazewell County, Illinois. As of the 2010 census, its population was 2,061 and it contained 902 housing units. Contents.
St. Clair County is the oldest county in the U.S. state of Illinois. According to the 2010 census, it had a population of 270,056, making it the eighth most populous county in Illinois and the most populous in the southern portion of the state. Its county seat is Belleville. The county was founded in 1790, before the establishment of Illinois itself, and contains the historic French settlement and former mission, Cahokia Village, founded 1697.