EXHIBIT 4.3 AMENDMENT TO WARRANT AGREEMENTS This AMENDMENT (this "Amendment") is an amendment to that certain Warrant Agreement, dated as of September 22, 1992, by and among Life Medical Sciences, Inc. (the "Company"), American Stock Transfer & Trust...Warrant Agreements • July 31st, 1998 • Life Medical Sciences Inc • Orthopedic, prosthetic & surgical appliances & supplies
