Pleural effusion guidelines from ICS and NCCP Section 1: Basic principles, laboratory tests and pleural procedures. - Christopher, Devasahayam J.; Gupta, Richa; Thangakunam, Balamugesh; Daniel, Jefferson; Jindal, Surinder K.; Kant, Surya; Chhajed, Prashant N.; Gupta, K. B.; Dhooria, Sahajal; Chaudhri, Sudhir; Chaudhry, Dhruva; Patel, Dharmesh; et al. (Lung India, 2024)