EXHIBIT 10.19.3 AMGEN AMENDMENT NO. 1 RENAL CARE GROUP, INC. AGREEMENT NO. 200308361 --------------------------------------------------------------------- ----------- The undersigned hereby agree to amend Agreement No. 200308361 (the "Agreement")...Agreement No. 200308361 • March 2nd, 2005 • Renal Care Group Inc • Services-misc health & allied services, nec • California
