Hulathduwa, S. R., & Wijesinghe, B. P. (2021). PULMONARY THROMBO-EMBOLISM: DIFFICULTIES ENCOUNTERED IN ESTABLISHING CAUSAL RELATIONSHIP AND EXCLUDING THERAPEUTIC MISMANAGEMENT-A CASE REPORT. International Journal of Research -GRANTHAALAYAH, 9(4), 150–160. https://doi.org/10.29121/granthaalayah.v9.i4.2021.3838