van Beek EJ, Brouwerst EM, Song B, Stein PD, Oudkerk M (October 2001). "Clinical validity of a normal pulmonary angiogram in patients with suspected pulmonary embolism--a critical review". Clinical Radiology. 56 (10): 838–42. doi:10.1053/crad.2001.0778. PMID11895301.
Menzoian JO, Williams LF (April 1979). "Is pulmonary angiography essential for the diagnosis of acute pulmonary embolism?". American Journal of Surgery. 137 (4): 543–8. doi:10.1016/0002-9610(79)90128-4. PMID426205.
van Beek EJ, Brouwerst EM, Song B, Stein PD, Oudkerk M (October 2001). "Clinical validity of a normal pulmonary angiogram in patients with suspected pulmonary embolism--a critical review". Clinical Radiology. 56 (10): 838–42. doi:10.1053/crad.2001.0778. PMID11895301.
Menzoian JO, Williams LF (April 1979). "Is pulmonary angiography essential for the diagnosis of acute pulmonary embolism?". American Journal of Surgery. 137 (4): 543–8. doi:10.1016/0002-9610(79)90128-4. PMID426205.