Your search Notice: Eighth Circuit Rule 28a(k) Governs Citation of Unpublished Opinions and Provides That They Are Not Precedent and Generally Should Not Be Cited Unless Relevant to Establishing the Doctrines of Res Judicata, Collateral Estoppel, the Law of the Case, or if the Opinion Has Persuasive Value on a Material Issue and No Published Opinion Would Serve As Well.preston C. Roberson, Appellant, v. Mr. Walton, Manager, Cummins Unit Infirmary, Arkansasdepartment of Correction; Ms. Bennett, Cummins Unitinfirmary, Arkansas Department of Correction; Don Worthy;ken Wright; Dr. Brooks; Dr. Lintecum, Originally Sued As"dr. Lintcum"; Lois Coleman, Originally Sued As "louiscoleman"; Ann Stephens, Originally Sued As "ann Stephen";defendants.frank Thompson, Originally Sued As "warden Thompson," Appellee did not match any document.