Karanikolopoulos, N. Pitsikalis, M. Hadjichristidis, N. Georgikopoulou, K. Calogeropoulou, T. Dunlap, J.R., PH-responsive aggregates from double hydrophilic block copolymers carrying zwitterionic groups. Encapsulation of antiparasitic compounds for the treatment of leishmaniasis, Langmuir, (23), 4214-4224, 2007, 0743-7463, 1520-5827