Exhibit 4.3 STOCK PURCHASE WARRANT AGREEMENT TO SUBSCRIBE FOR AND PURCHASE SHARES OF COVALENT GROUP, INC. THIS CERTIFIES THAT, for value received, S&F Consulting, Inc. (hereinafter called "Holder") or registered assign(s), is entitled to subscribe for...Stock Purchase Warrant Agreement • July 15th, 1998 • Covalent Group Inc • Laboratory analytical instruments
