Nanomolar potency of imidazo[2,1-b]thiazole analogs as indoleamine 2,3-dioxygenase inhibitors. - Ewida MA; Ewida HA; Ahmed MS; Allam HA; ElBagary RI; George RF; Georgey HH; El-Subbagh HI (Archiv der Pharmazie, 2021)