© 1992 Nature Publishing Group http://www.nature.com/naturebiotechnology

© 1992 Nature Publishing Group http://www.nature.com/naturebiotechnology

© 1992 Nature Publishing Group http://www.nature.com/naturebiotechnology

© 1992 Nature Publishing Group http://www.nature.com/naturebiotechnology

© 1992 Nature Publishing Group http://www.nature.com/naturebiotechnology

Biopharmaceuticals and conventional drugs: clinical success rates.

© 1992 Nature Publishing Group http://www.nature.com/naturebiotechnology © 1992 Nature Publishing Group http://www.nature.com/naturebiotechnology...
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