 IRVINE, Calif.--BUSINESS WIRE-- Publicoffering--Sabra Health Care REIT, Inc. Sabra Nasdaq: SBRA announced today that it has commenced an underwritten public offering of 6.8 million shares of its common stock. Sabra intends to grant the underwriters a 30-day option to purchase up to 1.02 million additional shares of its common stock. Sabra intends to use the net proceeds from the offering to fund a proposed 325 million mortgage loan to Recovery Centers of America secured by eight inpatient addiction tre 