Cozzi, Diletta, et al. “Vascular Tree-in-Bud Sign in Pulmonary Tumour Thrombotic Microangiopathy (PTTM): CT Findings for a Difficult Radiological Early Antemortem Diagnosis”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, vol. 40, no. 1, Mar. 2023, p. e2023006, https://doi.org/10.36141/svdld.v40i1.13378.