LOUISVILLE, Ky. (AP) ¿ Institutional pharmacy services provider PharMerica Corp. said Monday it bought Integrity Pharmacy Services for an undisclosed amount of cash. Integrity, which has operations in Florida, Massachusetts, and Pennsylvania, generates about $60 million in annual revenue. PharMerica closed the deal Dec. 31 and said the buyout will add to its earnings in 2010. Shares of PharMerica rose 44 cents, or 2.8 percent, to $16.32 in midday trading. Shares have traded between $13.97 and $21.69 over the last 52 weeks.