Chemoprevention by nonsteroidal anti-inflammatory drugs eliminates oncogenic intestinal stem cells via SMAC-dependent apoptosisThe fate of cyanobacterial detritus in the food web of Lake Taihu: a mesocosm study using 13C and 15N labelingCarbon fluxes from Microcystis sp. to zooplankton in lake Taihu, China: a stable isotope labeling study