Exhibit (a)(11) AMENDMENT NO. 3 TO AGREEMENT AND PLAN OF MERGER AMENDMENT NO. 3, dated as of September 25, 2002 (this "Amendment"), among QUEST DIAGNOSTICS INCORPORATED, a Delaware corporation ("Parent"), QUEST DIAGNOSTICS NEWCO INCORPORATED, a...Agreement and Plan of Merger • September 26th, 2002 • Quest Diagnostics Inc • Services-medical laboratories
