Prolonged and high dosage of tigecycline – successful treatment of spondylodiscitis caused by multidrug-resistant Acinetobacter baumannii: a case report oleh Olga Tsachouridou, Adamantini Georgiou, Sideris Nanoudis, Theofilos Chrysanthidis, Georgia Loli, Petros Morfesis, Pantelis Zebekakis, Symeon Metallidis