Turkish Competition Board initiated an investigation on January 18th, 2018 on Oncosem Onkolojik Sistemler San. ve Tic. A.Ş., Santek Sağlık Turz. Teks. San. ve Tic. A.Ş., Meditera İthalat ve İhracat A.Ş., Onkofar Sağlık Ürünleri San. ve Tic. A.Ş., İnvotek Sağlık Teknolojileri Tic. Ltd. Şti. and Korulu Grup Sağlık Hizmet İnşaat Taahhüt Makina Temizlik San. ve Tic. Ltd. Şti. following a preliminary inquiry based on an allegation concerning bid rigging for preparation of chemotherapy drugs. The press release dated 21.02.2018 about the investigation, initiated by the decision numbered 18-03/30-M, is available via http://www.rekabet.gov.tr/tr/Guncel/kemoterapi-ilac-hazirlama-alaninda-faali-aa86823a1617e81180e50050568d4f05