Pleural effusion guidelines from ICS and NCCP Section 1: Basic principles, laboratory tests and pleural procedures oleh Devasahayam J. Christopher, Richa Gupta, Balamugesh Thangakunam, Jefferson Daniel, Surinder K. Jindal, Surya Kant, Prashant N. Chhajed, K B Gupta, Sahajal Dhooria, Sudhir Chaudhri, Dhruva Chaudhry, Dharmesh Patel, Ravindra Mehta, Rakesh K. Chawla, Arjun Srinivasan, Arvind Kumar, Shakti K. Bal, Prince James, Jebin S Roger, Avinash A. Nair, S K Katiyar, Ritesh Agarwal, Raja Dhar, Ashutosh N. Aggarwal, J K Samaria, Digambar Behera, Karan Madan, Raj B Singh, S K Luhadia, Nikhil Sarangdhar, George D’ Souza, Amita Nene, Akhil Paul, Vimi Varghese, T V Rajagopal, M Arun, Shraddha Nair, Dhivya A Roy, Benjamin E. Williams, Shona A. Christopher, Dhanawade V. Subodh, Nishant Sinha, Barney Isaac, Ashwin A Oliver, N Priya, Jedidiah Deva, Sujith T. Chandy, Richu Bob Kurien