Key points are not available for this paper at this time.
From the Department of Medicine, University of North Carolina, Chapel Hill, North Carolina. Acknowledgment date: July 29, 1996. Acceptance date: August 25, 1996. Device status category: 1. Address reprint requests to: Nortin M. Hadler, MD; Department of Medicine; 3330 Thurston Building CB#7280; University of North Carolina; Chapel Hill, NC 27599-7280
Nortin M. Hadler (Tue,) studied this question.