1 EXHIBIT 4.1 NBD Bank 28660 Northwestern Highway Southfield, Michigan 48034 Telephone: (248) 799-5817 Fax: (248) 799-5826 Robert B. Green First Vice President October 8, 1998 Mr. Alan S. Ker Vice President Finance and Treasurer Universal Standard...Revolving Credit and Loan Agreement • November 17th, 1998 • Universal Standard Medical Laboratories Inc • Services-medical laboratories
