452.311. A petition is not filed within the meaning of supreme court rule 53.01 in any cause of action authorized by the provisions of this chapter, unless a summons is issued forthwith as required by supreme court rule 54.01, a verified and notarized entry of appearance of respondent is filed or an attorney files an entry of appearance on behalf of respondent.
(L. 1989 1st Ex. Sess. H.B. 2 § 7, A.L. 1991 S.B. 312, A.L. 2003 H.B. 613)
Missouri General Assembly