AMENDMENT NO. 1 DATED AS OF JUNE 18, 2000 TO THE AGREEMENT AND PLAN OF MERGER AMONG HEALTHEON/WEBMD CORPORATION, AVICENNA SYSTEMS CORPORATION AND CAREINSITE, INC., DATED AS OF FEBRUARY 13, 2000 Amendment No. 1, dated as of June 18, 2000 (the...Agreement and Plan of Merger • June 29th, 2000 • Medical Manager Corp/New/ • Plastics products, nec • Delaware
