0000950130-97-002520 S-3/A 3 19970520 NYSE LABORATORY CORP OF AMERICA HOLDINGS 0000920148 8071 133757370 DE 1231 S-3/A 33 333-22427 97612045 358 S MAIN ST BURLINGTON NC 27215 8002227566 358 S MAIN ST 4225 EXECUTIVE SQUARE, SUITE 800 BURLINGTON NC 27215 NATIONAL HEALTH LABORATORIES HOLDINGS INC 19940314 S-3/A 1 000095013097002520-001-seq1-s-3-a.txt AMENDMENT #3 TO FORM S-3 EX-12.1 2 000095013097002520-002-seq2-ex-12-1.txt STATEMENT REGARDING RATIOS & DIVIDENDS EX-23.1 3 000095013097002520-003-seq3-ex-23-1.txt CONSENT OF KPMG