Bids and proposals are not available until after bids have been opened or time for receipt of bids has expired. G.L. c. 4, § 7, cl. 26(h). Fiscal statements filed by governmental contractors are normally not available. See G.L. c. 30, § 39R(f). Certain contracts for hospital or related health care services, if between a government-operated medical facility and another entity specifically described in the Public Records Law, may be withheld pursuant to exemption (m). G.L. c. 4, § 26(m).