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 selection of a contractor for the construction, according to article 50 of law 4412/2016, of the project: «Development of a new building with an amphitheater for expanding the oncology clinic and the establishment of a new radiotherapy center including the department of nuclear medicine in the General Hospital of Lamia»”