The Act specifically provides that, unless otherwise exempted by law, hospital authority records are public records. O.C.G.A. § 50-18-72(c)(1). See, e.g., Northwest Ga. Health Sys. v. Times-Journal, 218 Ga. App. 336, 461 S.E.2d 297 (1995) (private company that operates public hospital is a "vehicle" of hospital authority and thus subject to Act); Richmond County Hosp. Auth. v. Southeastern Newspapers Corp., 252 Ga.