Antiproliferative and quinone reductase-inducing activities of withanolides derivatives - García, M E; Nicotra, V E; Oberti, J C; Ríos-Luci, C; León, L G; Marler, L; Li, G; Pezzuto, J M; van Breemen, R B; Padrón, J M; Hueso-Falcón, I; Estévez-Braun, A (Eur J Med Chem, 2014)