Columbus, Ohio-based Deep Lens Inc., which focuses on artificial intelligence (AI) to help in clinical trial recruitment, reported that it has closed a $14 million series A financing, led by Northpond Ventures. Also joining were existing investors Rev1 Ventures, Sierra Ventures and Tamarind-Hill Partners. News of the round comes three months after Deep Lens closed its venture capital-led seed equity round, bringing the total raised to $17.5 million.