Versions of Ohio Code 4729.89 - Investigational drugs on LawServer 2024 Ohio Code 4729.89 – Investigational drugs 2023 Ohio Code 4729.89 – Investigational drugs 2020 Ohio Code 4729.89 – Investigational drugs 2018 Ohio Code 4729.89 – Investigational drugs 2016 Ohio Code 4729.89 – Investigational drugs