Where a municipal transit corporation refused to allow advertisements on behalf of a health services group that favored alternatives to abortion, refusal was impermissible discrimination.The 7th U.S. Circuit Court of Appeals reversed a decision by U.S. District Judge Robert L. Miller Jr. of the Northern District of Indiana.Citilink is a municipal corporation that provides bus service in Fort Wayne, Ind. Citilink has regulatory authority over advertisements both inside and outside the bus. Women’s Health Link Inc. is …