CREDIT AGREEMENT dated as of July 10, 2012 among MERUS LABS INTERNATIONAL INC., as Borrower, MERUS LABS LUXCO S.À R.L, MERUS LABS INC., ECG HOLDINGS INC., and MERUS LABS NETHERLANDS B.V. as Loan Parties, PDL BIOPHARMA, INC., as Lender, and PDL...