Welsh, Carson, Anderson & Stowe has invested in Emerus Holdings. Financial terms weren’t announced. CORRECTION: Austin Ventures, which invested $30 million in 2011, has sold its remaining stake in Emerus and is completely divested, said Jason Lisovicz, Emerus’ VP of marketing. Welsh Carson now owns a minority of Emerus. The firm acquired a much bigger stake than that held by Austin Ventures. Sellers, in addition to Austin, include six Emerus founders and 23 minor investors, Lisovicz said. Woodlands, Texas-based Emerus is a hospital system that provides inpatient and diagnostic care. BofA Merrill Lynch advised Emerus.