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Three more biotechnology companies went public Thursday as startups continued to capitalize on strong demand for these offerings, a trend that’s giving life-sciences venture capitalists a much-needed lift.

Cellular Dynamics International Inc., Conatus Pharmaceuticals Inc. and Onconova Therapeutics Inc. debuted on Nasdaq Thursday. Their initial public offerings followed recent IPOs from venture-backed biotechs such as Agios Pharmaceuticals Inc., bluebird bio Inc., Esperion Therapeutics Inc., OncoMed Pharmaceuticals Inc. and Prosensa Holding BV.