L. E. Nyanti, “Pleural fluid residue as a diagnostic tool for cytology-negative malignant pleural effusion: A proof-of-concept study”, Afr J Thoracic Crit Care Med, vol. 29, no. 4, p. e1149, Nov. 2023, doi: 10.7196/AJTCCM.2023.v29i4.1149.