00403nam a2200121Ia 4500008004100000245014200041260001700183260000900200300000800209650002300217650001200240856002900252170516s9999    xx            000 0 und d  aOptimization of Optical Excitation of Upconversion Nanoparticles for Rapid Microscopy and Deeper Tissue Imaging with Higher Quantum Yield  bTheranostics  c2013  a3:5  xMedical Technology  xMedtech  uhttp://www.thno.org/v3i5