Bulgarian drug trader Medex has signed a 4.8 million levs ($2.8 million/2.4 million euro) contract for supply of pharmaceutical products to Sofia-based Specialized hospital for active treatment in oncology, the hospital said.The deal was signed on September 26, the hospital said in a notice on Monday.The oncology hospital received a total of 123 offers for the drug supply contract.Sofia-based Medex is an official distributor of products made by Bayer, La Roche, Sanofi, Pfizer, Mundipharma, Merck, Nobel Pharma and others.(1 euro = 1.95583 levs)