Database Link ：http://highwire.stanford.edu/cgi/search
HighWire Press, founded in 1995 by Stanford University Library, is one of the world's largest publishers of free full-text academic literature.
At present, more than 882 electronic journals have been included, and the total number of articles has reached more than 2.82 million, of which more than 1.03 million articles are freely available in full. These data are still increasing.
The journals included cover the following disciplines: life sciences, medicine, physics, social sciences.