Ecological and antileishmanial activity of diterpenes derived from the Antarctic sponge Dendrilla membranosa - Witowski, CG; Salm, JL von; Maschek, JA; Amsler, MO; Vesely, BA; Kyle, DE; McClintock, JB; Amsler, CD; Baker, BJ (Planta Medica, 2015)