Case C-96/20: Judgment of the Court (Eighth Chamber) of 10 March 2021 (request for a preliminary ruling from the Corte suprema di cassazione — Italy) — Ordine Nazionale dei Biologi, MX, NY, OZ v Presidenza del Consiglio dei Ministri (Reference for a preliminary ruling — Public health — Article 168 TFEU — Directive 2002/98/EC — Standards of quality and safety of human blood and of blood components — Objective of ensuring a high level of protection of human health — Article 4(2) and Article 9(2) — Blood establishments — Responsible person — Minimum conditions of qualification — Option for a Member State to provide for a more stringent regime — Discretion afforded to the Member States)