Makris D, Petinaki E, Tsolaki V, Manoulakas E, Mantzarlis K, Apostolopoulou O, Sfyras D, Zakynthinos E. Colistin versus Colistin Combined with Ampicillin. Sulbactam for Multiresistant Acinetobacter baumannii Ventilator. Associated Pneumonia Treatment: An Open. Label Prospective Study. Indian J Crit Care Med 2018; 22 (2):67-77.