Aortic dissection40 | Patients admitted through emergency department and diagnosed with aortic dissection at any point during hospitalization or at necropsy | Three hospitals affiliated with University of Pittsburgh; 1992–6 | 37 | 6 |
Aortic dissection41 | Patients diagnosed at any point during hospitalization or at necropsy | Henry Ford Health System, Detroit; 1985–94 | 77 | 6 |
Pulmonary embolism42 | International registry of patients with suspected or confirmed pulmonary embolism | 52 teaching hospitals in seven countries; 1995–6 | 2393 | 61 |
Active tuberculosis43 | Cases of active tuberculosis, including those diagnosed after death*, reported to a regional department of public health | San Francisco; 1986–95 | 2982 | 120* |