Case C-662/13: Judgment of the Court (Ninth Chamber) of 12 February 2015 (request for a preliminary ruling from the Supremo Tribunal Administrativo — Portugal) — Surgicare — Unidades de Saúde SA v Fazenda Pública (Reference for a preliminary ruling — VAT — Directive 2006/112/EC — Deduction of input tax — Transactions constituting an abusive practice — National tax law — Special national procedure where the existence of abusive practices is suspected in the field of taxation — Principles of effectiveness and equivalence)