Spectroscopy, Electron Energy-LossMicroscopy, Energy-Filtering Transmission ElectronElectron Probe MicroanalysisElectronsMass SpectrometryEnergy MetabolismTandem Mass SpectrometryRadiation DosageSpectrometry, Mass, Electrospray IonizationMagnetic Resonance SpectroscopyEnergy IntakeSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGas Chromatography-Mass SpectrometryMicroscopy, ElectronEnergy TransferChromatography, LiquidNumerical Analysis, Computer-AssistedElectron TransportMicroscopy, Electron, Scanning