EXHIBIT 10.33 FOURTH AMENDMENT TO LOAN DOCUMENTS THIS FOURTH AMENDMENT TO LOAN DOCUMENTS (this "Amendment"), made as of the 31st day of December, 1998, is between BIRNER DENTAL MANAGEMENT SERVICES, INC., a Colorado corporation ("Borrower") and KEYBANK...Loan Agreement • March 31st, 1999 • Birner Dental Management Services Inc • Services-management services • Colorado
