Iarussi, T., et al. “THE TREATMENT OF EMPYEMA THORACIS BY VIDEO ASSISTED THORACIC SURGERY (VATS)”. Annali Italiani Di Chirurgia, vol. 74, no. 1, Jan. 2003, pp. 9-12, https://annaliitalianidichirurgia.it/index.php/aic/article/view/1022.