definiens: means ( i ) the Promissory Note of Clinsite, Seller and certain Affiliates of Clinsite payable to PCLP, dated April 21, 1999 in the face amount of up to $ 840,000, with an outstanding principal balance of $ 600,000 due April 21, 2004, ( ii ) the first Amended and Restated Promissory Note of Clinsite payable to PCLP, dated March 19, 1996 in the principal amount of $ 400,000 with an outstanding principal balance of $ 400,000 due March 31, 2004, ( iii ) the First Amended and Restated Promissory Note of Clinsite payable to PCLP, dated November 4, 1996 in the principal amount of $ 750,000 with an outstanding principal balance of $ 750,000 due September 30, 2004, and ( iv ) all other obligations and liabilities of Clinsite, Seller and their Affiliates under the foregoing Promissory Notes and under the terms and provisions of the Loan Documents ( as defined in the Business Loan Agreement among Clinsite, Seller, PCLP and certain other parties dated April 21, 1999 . )