A study published in this week's Public Library of Science (PLoS) Medicine, an open-access scientific journal, raises doubts about dispensing such drugs so freely.

Hades is an open source library that's built on top of JPA and Spring to significantly improve the implementation of data access layers by reducing the effort to the amount that's actually needed.

You can read the full text of their article in the new Public Library of Science's international, peer-reiewed, open-access, online publication PLoS One.