ICH Q5A(R2) : Viral Safety Evaluation of Biotechnology Products Derived from Cell Lines of Human or Animal Origin Leave a Comment / By florent.maestracci / 23 January 2023 7 February 2023 https://database.ich.org/sites/default/files/ICH_Q5A%28R2%29_Step2_draft_Guideline_2022_0826.pdf