Saraya, Takeshi, et al. “The Role of Vital Signs in Predicting Cardiac Tamponade in Asymptomatic Patients With Malignancy: Associated Pericardial Effusion”. Pulmonary Research and Respiratory Medicine, vol. 4, no. 3, May 2017, pp. S3-S7, doi:10.17140/prrmoj-se-1-102.