Goldschlager Nora, Epstein Andrew E, Grubb Blair P, Olshansky Brian, Prystowsky Eric, Roberts William C, Scheinman Melvin M
Cardiology Division, 1001 Potrero Ave, Room 5G1, San Francisco General Hospital, San Francisco, CA 94110, USA.
Arch Intern Med. 2003 Jan 27;163(2):151-62. doi: 10.1001/archinte.163.2.151.