Exhibit 10.1 AMENDMENT NO. 6 TO AMENDED AND RESTATED CREDIT AND SECURITY AGREEMENT THIS AMENDMENT NO. 6 TO AMENDED AND RESTATED CREDIT AND SECURITY AGREEMENT (this "Amendment") is entered into as of June 27, 2003, by and among: (1) QUEST DIAGNOSTICS...Credit and Security Agreement • July 31st, 2003 • Quest Diagnostics Inc • Services-medical laboratories • New York
