Decision to amend the deadline for submission of the tender offers and the deadline for the electronic opening of the tender offers within the context of the Declaration of an open process for the construction of the project: « “Reconstruction, refurbishment & upgrade works at the G.A.O.N.A. Hospital of “Agios Savvas”: plant room reconstruction & upgrade works, boiler room retrofit works and the renovation & upgrade of operating theatres located on the 2nd & 3rd floor”»