Warren, 1999, Clinical Infectious Diseases, 29, 745, 10.1086/520427
2001, Clinical Infectious Diseases, 33, 89, 10.1086/320880
Gupta, 2001, Annals of Internal Medicine, 135, 41, 10.7326/0003-4819-135-1-200107030-00012
Gupta, 1999, JAMA, 281, 736, 10.1001/jama.281.8.736
2004, Clinical Infectious Diseases, 39, 75, 10.1086/422145
Fihn, 2003, New England Journal of Medicine, 349, 259, 10.1056/NEJMcp030027
McEwen, 2003, Annals of epidemiology, 13, 479, 10.1016/S1047-2797(03)00009-7
Huang, 2002, Archives of Internal Medicine, 162, 41, 10.1001/archinte.162.1.41
Kallen, 2006, Archives of Internal Medicine, 166, 635, 10.1001/archinte.166.6.635