Medicare To investigate charges against Colorado Blue Shield. RMN Ag 26, 1971 p.5 Post Ag 26, 1971 p.23 Colorado branch of Blue Cross-Blue Shield cleared of any intent to defraud in Medicare. RMN 0 31, 1971 p.24 Two administrators, 1 doctor ask Colorado legislative panel's intervention in million dollar struggle over Medicare. Post N 18, 1971 p.3 RMN N 18, 1971 p.62