Rochester General Health System was created in 1847.
Erlanger Health System was created in 1889.
Sparrow Health System was created in 1912.
Niagara Health System was created in 2005.
Benefis Health System was created in 1996.
Mission Health System was created in 1998.
Alegent Health System was created in 1996.
Riverside Health System was created in 1916.
Adventist Health System was created in 1973.
Genesis Health System was created in 1869.
CentraCare Health System was created in 1995.
The endocrine system controls growth and general health of the body.
Saint Luke's Health System was created in 1882.