"Any corporal convening and deliberation of a governmental body for which a quorum is required in order to make a decision at which any public business or public policy matter over which the governmental body has supervision, control, jurisdiction or advisory power is discussed or considered." G.L. c. 39, § 23A. At least one case tends to construe "meeting" narrowly. Medlock v. Board of Trustees of University of Massachusetts, 31 Mass. App. Ct. 495, 580 N.E.2d 387 (1991) (animal use and care committees at state medical school held not to consider public policy matters and therefore to be exempt from OML). See also Globe Newspaper Co. v. Massachusetts Bay Transportation Authority Retirement Board, 416 Mass. 1007, 622 N.E.2d 265 (1993) (records of public agency retirement board created by collective bargaining agreement are not public records).