Para abordar esta cuestión, tres líneas celulares de glioma transformadas se obtuvieron (Rb−/−, RasV12, y Rb−/−/RasV12) mediante transformación retroviral de astrocitos in vitro, reportado anteriormente.
The CSA program has led to a reduction in importing expenses for some companies because CSA accounting procedures and systems have, in some cases, lessened importers’ reliance on outside service fees.springer springer