![Live tissue intrinsic emission microscopy using multiphoton-excited native fluorescence and second harmonic generation]()
Live tissue intrinsic emission microscopy using multiphoton-excited native fluorescence and second harmonic generationZipfel, W. R.; Williams, R. M.; Christie, R.; Nikitin, A. Y.; Hyman, B. T.; Webb, W. W. · Proceedings of the National Academy of Sciences · 2003