13 octubre 2014
Imagine no tears during infant vaccines and no fear of the needle for those old enough to know what’s coming. Such painless injections could be possible with a device that applies pressure and vibration while the needle is inserted in the skin, according to a study.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AbFPOaun9iE/141013141659.htm
