More than one-fifth of US electricity is used to power artificial lighting. Light-emitting diodes based on group III/nitride semiconductors are bringing about a revolution in energy-efficient lighting ...
1 Department of Clinical Epidemiology, Biostatistics and Bioinformatics (KEBB), Academic Medical Centre (AMC), University of Amsterdam (UvA), Amsterdam, The Netherlands 2 Dutch Cochrane Centre (DCC), ...
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