D. Puerto Rico June 1990 casesde Leon Lopez v. Corporacion Insular de SegurosPeople of Puerto Rico v. T. ChaparroDe-Castro v. MedinaHuertas-Laboy v. Rodriguez-GonzalezCastrello Merced v. Hernandez ColonA.F.A.P.S v. RegulationsLipsett v. University of Puerto Rico