San Francisco-based Practice Fusion, maker of a free, web-based EHR, has raised $70 million in a round led by Kleiner Perkins Caufield & Byers (KPCB). OrbiMed Advisors, Deerfield Management Company, and Industry Ventures also contributed to the round, as did previous investors Artis Ventures, Morgenthaler Ventures, Felicis Ventures, Glynn Capital Management, Band of Angels Acorn Fund, H...